diff --git a/mindspore/core/ir/dtype/number.cc b/mindspore/core/ir/dtype/number.cc
index 8bbfcd7e14..c18f3e6f0e 100644
--- a/mindspore/core/ir/dtype/number.cc
+++ b/mindspore/core/ir/dtype/number.cc
@@ -47,6 +47,12 @@ Float::Float(const int nbits) : Number(FloatBitsToTypeId(nbits), nbits, false) {
   }
 }
 
+Complex::Complex(const int nbits) : Number(TypeId::kNumberTypeComplex64, nbits, false) {
+  if (nbits != 64) {
+    MS_LOG(EXCEPTION) << "Wrong number of bits.";
+  }
+}
+
 const TypePtr kBool = std::make_shared<Bool>();
 const TypePtr kInt8 = std::make_shared<Int>(8);
 const TypePtr kInt16 = std::make_shared<Int>(16);
@@ -63,4 +69,5 @@ const TypePtr kInt = std::make_shared<Int>();
 const TypePtr kUInt = std::make_shared<UInt>();
 const TypePtr kFloat = std::make_shared<Float>();
 const TypePtr kNumber = std::make_shared<Number>();
+const TypePtr kComplex64 = std::make_shared<Complex>(64);
 }  // namespace mindspore
diff --git a/mindspore/core/ir/dtype/number.h b/mindspore/core/ir/dtype/number.h
index d753546b2e..1410eb368d 100644
--- a/mindspore/core/ir/dtype/number.h
+++ b/mindspore/core/ir/dtype/number.h
@@ -150,6 +150,28 @@ class Float : public Number {
   }
 };
 
+// Complex
+class Complex : public Number {
+ public:
+  Complex() : Number(kNumberTypeComplex64, 0) {}
+  explicit Complex(const int nbits);
+  ~Complex() override {}
+  MS_DECLARE_PARENT(Complex, Number)
+
+  TypeId generic_type_id() const override { return kNumberTypeComplex64; }
+  TypePtr DeepCopy() const override {
+    if (nbits() == 0) {
+      return std::make_shared<Complex>();
+    }
+    return std::make_shared<Complex>(nbits());
+  }
+  std::string ToString() const override { return GetTypeName("Complex64"); }
+  std::string ToReprString() const override { return nbits() == 0 ? "complex64_" : GetTypeName("complex64"); }
+  std::string DumpText() const override {
+    return nbits() == 0 ? std::string("Complex64") : std::string("C") + std::to_string(nbits());
+  }
+};
+
 extern const TypePtr kBool;
 extern const TypePtr kInt8;
 extern const TypePtr kInt16;
@@ -166,6 +188,7 @@ extern const TypePtr kInt;
 extern const TypePtr kUInt;
 extern const TypePtr kFloat;
 extern const TypePtr kNumber;
+extern const TypePtr kComplex64;
 }  // namespace mindspore
 
 #endif  // MINDSPORE_CORE_IR_DTYPE_NUMBER_H_
diff --git a/mindspore/core/ir/dtype_extends.cc b/mindspore/core/ir/dtype_extends.cc
index 5144aff490..7c69807138 100644
--- a/mindspore/core/ir/dtype_extends.cc
+++ b/mindspore/core/ir/dtype_extends.cc
@@ -69,6 +69,8 @@ TypePtr TypeIdToType(TypeId id) {
       return kFloat32;
     case kNumberTypeFloat64:
       return kFloat64;
+    case kNumberTypeComplex64:
+      return kComplex64;
     case kNumberTypeInt8:
       return kInt8;
     case kNumberTypeInt16:
diff --git a/mindspore/lite/src/ops/audio_spectrogram.cc b/mindspore/lite/src/ops/audio_spectrogram.cc
new file mode 100644
index 0000000000..e5c565625d
--- /dev/null
+++ b/mindspore/lite/src/ops/audio_spectrogram.cc
@@ -0,0 +1,107 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "src/ops/audio_spectrogram.h"
+
+#ifndef PRIMITIVE_WRITEABLE
+#include "src/ops/ops_register.h"
+#endif
+
+namespace mindspore {
+namespace lite {
+#ifdef PRIMITIVE_WRITEABLE
+int AudioSpectrogram::GetWindowSize() const { return this->primitive_->value.AsAudioSpectrogram()->windowSize; }
+int AudioSpectrogram::GetStride() const { return this->primitive_->value.AsAudioSpectrogram()->stride; }
+bool AudioSpectrogram::GetMagSquare() const { return this->primitive_->value.AsAudioSpectrogram()->magSquare; }
+
+#else
+int AudioSpectrogram::GetWindowSize() const { return this->primitive_->value_as_AudioSpectrogram()->windowSize(); }
+int AudioSpectrogram::GetStride() const { return this->primitive_->value_as_AudioSpectrogram()->stride(); }
+bool AudioSpectrogram::GetMagSquare() const { return this->primitive_->value_as_AudioSpectrogram()->magSquare(); }
+int AudioSpectrogram::UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) {
+  MS_ASSERT(nullptr != primitive);
+  MS_ASSERT(nullptr != fbb);
+  auto attr = primitive->value_as_AudioSpectrogram();
+  if (attr == nullptr) {
+    MS_LOG(ERROR) << "value_as_Add return nullptr";
+    return RET_ERROR;
+  }
+  auto val_offset = schema::CreateAudioSpectrogram(*fbb, attr->windowSize(), attr->stride(), attr->magSquare());
+  auto prim_offset = schema::CreatePrimitive(*fbb, schema::PrimitiveType_AudioSpectrogram, val_offset.o);
+  fbb->Finish(prim_offset);
+  return RET_OK;
+}
+
+PrimitiveC *AudioSpectrogramCreator(const schema::Primitive *primitive) {
+  return PrimitiveC::NewPrimitiveC<AudioSpectrogram>(primitive);
+}
+Registry AudioSpectrogramRegistry(schema::PrimitiveType_AudioSpectrogram, AudioSpectrogramCreator);
+#endif
+int AudioSpectrogram::Log2Ceil(uint32_t length) {
+  if (length == 0) {
+    return -1;
+  }
+  int floor = 0;
+  for (int i = 4; i >= 0; --i) {
+    int shift = (1 << i);
+    uint32_t tmp = length >> shift;
+    if (tmp != 0) {
+      length = tmp;
+      floor += shift;
+    }
+  }
+  return length == (length & ~(length - 1)) ? floor : floor + 1;
+}
+uint32_t AudioSpectrogram::GetFftLength(uint32_t length) {
+  int shift = Log2Ceil(length);
+  return 1 << shift;
+}
+int AudioSpectrogram::InferShape(std::vector<Tensor *> inputs_, std::vector<Tensor *> outputs_) {
+  auto input = inputs_.front();
+  MS_ASSERT(input != nullptr);
+  auto output = outputs_.front();
+  MS_ASSERT(output != nullptr);
+  output->set_data_type(input->data_type());
+  output->SetFormat(input->GetFormat());
+  if (!GetInferFlag()) {
+    return RET_OK;
+  }
+  auto input_shape = input->shape();
+  if (input_shape.size() != 2) {
+    MS_LOG(ERROR) << "input shape is error, which need to be 2 dimensions";
+    return RET_ERROR;
+  }
+  if (GetWindowSize() < 2) {
+    MS_LOG(ERROR) << "window size is too short, now is " << GetWindowSize();
+    return RET_ERROR;
+  }
+  if (GetStride() < 1) {
+    MS_LOG(ERROR) << "stride must be positive, now is " << GetStride();
+    return RET_ERROR;
+  }
+  std::vector<int> output_shape(3);
+  output_shape[0] = input_shape[1];
+  // output height
+  int sample_sub_window = input_shape[0] - GetWindowSize();
+  output_shape[1] = sample_sub_window < 0 ? 0 : 1 + sample_sub_window / GetStride();
+  // compute fft length
+  int fft_length = GetFftLength(GetWindowSize());
+  output_shape[2] = fft_length / 2 + 1;
+  outputs_.front()->set_shape(output_shape);
+  return RET_OK;
+}
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/src/ops/audio_spectrogram.h b/mindspore/lite/src/ops/audio_spectrogram.h
new file mode 100644
index 0000000000..53e679a097
--- /dev/null
+++ b/mindspore/lite/src/ops/audio_spectrogram.h
@@ -0,0 +1,51 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LITE_MINDSPORE_LITE_C_OPS_AUDIO_SPECTROGRAM_H_
+#define LITE_MINDSPORE_LITE_C_OPS_AUDIO_SPECTROGRAM_H_
+
+#include <vector>
+#include <set>
+#include <cmath>
+#include "src/ops/primitive_c.h"
+
+namespace mindspore {
+namespace lite {
+class AudioSpectrogram : public PrimitiveC {
+ public:
+#ifdef PRIMITIVE_WRITEABLE
+  MS_DECLARE_PARENT(AudioSpectrogram, PrimitiveC);
+  AudioSpectrogram() = default;
+  explicit AudioSpectrogram(schema::PrimitiveT *primitive) : PrimitiveC(primitive) {}
+  void SetWindowSize(int window_size) { this->primitive_->value.AsAudioSpectrogram()->windowSize = window_size; }
+  void SetStride(int stride) { this->primitive_->value.AsAudioSpectrogram()->stride = stride; }
+  void SetMagSquare(bool mag_square) { this->primitive_->value.AsAudioSpectrogram()->magSquare = mag_square; }
+#else
+  AudioSpectrogram() = default;
+
+  int UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) override;
+#endif
+  int GetWindowSize() const;
+  int GetStride() const;
+  bool GetMagSquare() const;
+  int Log2Ceil(uint32_t length);
+  uint32_t GetFftLength(uint32_t length);
+  int InferShape(std::vector<lite::Tensor *> inputs_, std::vector<lite::Tensor *> outputs_) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+
+#endif  // LITE_MINDSPORE_LITE_C_OPS_AUDIO_SPECTROGRAM_H_
diff --git a/mindspore/lite/src/ops/fft_imag.cc b/mindspore/lite/src/ops/fft_imag.cc
new file mode 100644
index 0000000000..3e2f6c07f9
--- /dev/null
+++ b/mindspore/lite/src/ops/fft_imag.cc
@@ -0,0 +1,54 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "src/ops/fft_imag.h"
+
+#ifndef PRIMITIVE_WRITEABLE
+#include "src/ops/ops_register.h"
+#endif
+
+namespace mindspore {
+namespace lite {
+#ifndef PRIMITIVE_WRITEABLE
+int FftImag::UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) {
+  MS_ASSERT(nullptr != primitive);
+  MS_ASSERT(nullptr != fbb);
+  auto val_offset = schema::CreateEqual(*fbb);
+  auto prim_offset = schema::CreatePrimitive(*fbb, schema::PrimitiveType_FftImag, val_offset.o);
+  fbb->Finish(prim_offset);
+  return RET_OK;
+}
+
+PrimitiveC *FftImagCreator(const schema::Primitive *primitive) { return PrimitiveC::NewPrimitiveC<FftImag>(primitive); }
+Registry FftImagRegistry(schema::PrimitiveType_FftImag, FftImagCreator);
+#endif
+int FftImag::InferShape(std::vector<Tensor *> inputs_, std::vector<Tensor *> outputs_) {
+  auto input = inputs_.front();
+  MS_ASSERT(input != nullptr);
+  auto output = outputs_.front();
+  MS_ASSERT(output != nullptr);
+  output->set_data_type(TypeId::kNumberTypeFloat32);
+  output->SetFormat(input->GetFormat());
+  if (!GetInferFlag()) {
+    return RET_OK;
+  }
+  auto input_shape = input->shape();
+  input_shape.pop_back();
+  outputs_.front()->set_shape(input_shape);
+  return RET_OK;
+}
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/src/ops/fft_imag.h b/mindspore/lite/src/ops/fft_imag.h
new file mode 100644
index 0000000000..1b35e77a16
--- /dev/null
+++ b/mindspore/lite/src/ops/fft_imag.h
@@ -0,0 +1,43 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LITE_MINDSPORE_LITE_C_OPS_FFT_IMAG_H_
+#define LITE_MINDSPORE_LITE_C_OPS_FFT_IMAG_H_
+
+#include <vector>
+#include <set>
+#include <cmath>
+#include "src/ops/primitive_c.h"
+
+namespace mindspore {
+namespace lite {
+class FftImag : public PrimitiveC {
+ public:
+#ifdef PRIMITIVE_WRITEABLE
+  MS_DECLARE_PARENT(FftImag, PrimitiveC);
+  FftImag() = default;
+  explicit FftImag(schema::PrimitiveT *primitive) : PrimitiveC(primitive) {}
+#else
+  FftImag() = default;
+
+  int UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) override;
+#endif
+  int InferShape(std::vector<lite::Tensor *> inputs_, std::vector<lite::Tensor *> outputs_) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+
+#endif  // LITE_MINDSPORE_LITE_C_OPS_FFT_IMAG_H_
diff --git a/mindspore/lite/src/ops/fft_real.cc b/mindspore/lite/src/ops/fft_real.cc
new file mode 100644
index 0000000000..de68c73723
--- /dev/null
+++ b/mindspore/lite/src/ops/fft_real.cc
@@ -0,0 +1,54 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "src/ops/fft_real.h"
+
+#ifndef PRIMITIVE_WRITEABLE
+#include "src/ops/ops_register.h"
+#endif
+
+namespace mindspore {
+namespace lite {
+#ifndef PRIMITIVE_WRITEABLE
+int FftReal::UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) {
+  MS_ASSERT(nullptr != primitive);
+  MS_ASSERT(nullptr != fbb);
+  auto val_offset = schema::CreateEqual(*fbb);
+  auto prim_offset = schema::CreatePrimitive(*fbb, schema::PrimitiveType_FftReal, val_offset.o);
+  fbb->Finish(prim_offset);
+  return RET_OK;
+}
+
+PrimitiveC *FftRealCreator(const schema::Primitive *primitive) { return PrimitiveC::NewPrimitiveC<FftReal>(primitive); }
+Registry FftRealRegistry(schema::PrimitiveType_FftReal, FftRealCreator);
+#endif
+int FftReal::InferShape(std::vector<Tensor *> inputs_, std::vector<Tensor *> outputs_) {
+  auto input = inputs_.front();
+  MS_ASSERT(input != nullptr);
+  auto output = outputs_.front();
+  MS_ASSERT(output != nullptr);
+  output->set_data_type(TypeId::kNumberTypeFloat32);
+  output->SetFormat(input->GetFormat());
+  if (!GetInferFlag()) {
+    return RET_OK;
+  }
+  auto input_shape = input->shape();
+  input_shape.pop_back();
+  outputs_.front()->set_shape(input_shape);
+  return RET_OK;
+}
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/src/ops/fft_real.h b/mindspore/lite/src/ops/fft_real.h
new file mode 100644
index 0000000000..b35e4af5b1
--- /dev/null
+++ b/mindspore/lite/src/ops/fft_real.h
@@ -0,0 +1,43 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LITE_MINDSPORE_LITE_C_OPS_FFT_REAL_H_
+#define LITE_MINDSPORE_LITE_C_OPS_FFT_REAL_H_
+
+#include <vector>
+#include <set>
+#include <cmath>
+#include "src/ops/primitive_c.h"
+
+namespace mindspore {
+namespace lite {
+class FftReal : public PrimitiveC {
+ public:
+#ifdef PRIMITIVE_WRITEABLE
+  MS_DECLARE_PARENT(FftReal, PrimitiveC);
+  FftReal() = default;
+  explicit FftReal(schema::PrimitiveT *primitive) : PrimitiveC(primitive) {}
+#else
+  FftReal() = default;
+
+  int UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) override;
+#endif
+  int InferShape(std::vector<lite::Tensor *> inputs_, std::vector<lite::Tensor *> outputs_) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+
+#endif  // LITE_MINDSPORE_LITE_C_OPS_FFT_REAL_H_
diff --git a/mindspore/lite/src/ops/mfcc.cc b/mindspore/lite/src/ops/mfcc.cc
new file mode 100644
index 0000000000..f184e33b50
--- /dev/null
+++ b/mindspore/lite/src/ops/mfcc.cc
@@ -0,0 +1,83 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "src/ops/mfcc.h"
+
+#ifndef PRIMITIVE_WRITEABLE
+#include "src/ops/ops_register.h"
+#endif
+
+namespace mindspore {
+namespace lite {
+#ifdef PRIMITIVE_WRITEABLE
+float Mfcc::GetFreqUpperLimit() const { return this->primitive_->value.AsMfcc()->freqUpperLimit; }
+float Mfcc::GetFreqLowerLimit() const { return this->primitive_->value.AsMfcc()->freqLowerLimit; }
+int Mfcc::GetFilterBankChannelNum() const { return this->primitive_->value.AsMfcc()->filterBankChannelNum; }
+int Mfcc::GetDctCoeffNum() const { return this->primitive_->value.AsMfcc()->dctCoeffNum; }
+
+#else
+float Mfcc::GetFreqUpperLimit() const { return this->primitive_->value_as_Mfcc()->freqUpperLimit(); }
+float Mfcc::GetFreqLowerLimit() const { return this->primitive_->value_as_Mfcc()->freqLowerLimit(); }
+int Mfcc::GetFilterBankChannelNum() const { return this->primitive_->value_as_Mfcc()->filterBankChannelNum(); }
+int Mfcc::GetDctCoeffNum() const { return this->primitive_->value_as_Mfcc()->dctCoeffNum(); }
+int Mfcc::UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) {
+  MS_ASSERT(nullptr != primitive);
+  MS_ASSERT(nullptr != fbb);
+  auto attr = primitive->value_as_Mfcc();
+  if (attr == nullptr) {
+    MS_LOG(ERROR) << "value_as_Add return nullptr";
+    return RET_ERROR;
+  }
+  auto val_offset = schema::CreateMfcc(*fbb, attr->freqUpperLimit(), attr->freqLowerLimit(),
+                                       attr->filterBankChannelNum(), attr->dctCoeffNum());
+  auto prim_offset = schema::CreatePrimitive(*fbb, schema::PrimitiveType_Mfcc, val_offset.o);
+  fbb->Finish(prim_offset);
+  return RET_OK;
+}
+
+PrimitiveC *MfccCreator(const schema::Primitive *primitive) { return PrimitiveC::NewPrimitiveC<Mfcc>(primitive); }
+Registry MfccRegistry(schema::PrimitiveType_Mfcc, MfccCreator);
+#endif
+int Mfcc::InferShape(std::vector<Tensor *> inputs_, std::vector<Tensor *> outputs_) {
+  auto input = inputs_.front();
+  MS_ASSERT(input != nullptr);
+  auto output = outputs_.front();
+  MS_ASSERT(output != nullptr);
+  output->set_data_type(input->data_type());
+  output->SetFormat(input->GetFormat());
+  if (!GetInferFlag()) {
+    return RET_OK;
+  }
+  auto input_shape = input->shape();
+  if (input_shape.size() != 3) {
+    MS_LOG(ERROR) << "first input shape is error, which need to be 3 dimensions, but the dimension is "
+                  << input_shape.size();
+    return RET_ERROR;
+  }
+  if (inputs_[1]->ElementsNum() != 1) {
+    MS_LOG(ERROR) << "second input element num is error, which need only a value, but the number is "
+                  << inputs_[1]->ElementsNum();
+    return RET_ERROR;
+  }
+  std::vector<int> output_shape(3);
+  output_shape[0] = input_shape[0];
+  output_shape[1] = input_shape[1];
+  output_shape[2] = GetDctCoeffNum();
+  outputs_.front()->set_shape(output_shape);
+  return RET_OK;
+}
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/src/ops/mfcc.h b/mindspore/lite/src/ops/mfcc.h
new file mode 100644
index 0000000000..063a7ddb4b
--- /dev/null
+++ b/mindspore/lite/src/ops/mfcc.h
@@ -0,0 +1,57 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LITE_MINDSPORE_LITE_C_OPS_MFCC_H_
+#define LITE_MINDSPORE_LITE_C_OPS_MFCC_H_
+
+#include <vector>
+#include <set>
+#include <cmath>
+#include "src/ops/primitive_c.h"
+
+namespace mindspore {
+namespace lite {
+class Mfcc : public PrimitiveC {
+ public:
+#ifdef PRIMITIVE_WRITEABLE
+  MS_DECLARE_PARENT(Mfcc, PrimitiveC);
+  Mfcc() = default;
+  explicit Mfcc(schema::PrimitiveT *primitive) : PrimitiveC(primitive) {}
+  void SetFreqUpperLimit(float freq_upper_limit) {
+    this->primitive_->value.AsMfcc()->freqUpperLimit = freq_upper_limit;
+  }
+  void SetFreqLowerLimit(float freq_lower_limit) {
+    this->primitive_->value.AsMfcc()->freqLowerLimit = freq_lower_limit;
+  }
+  void SetFilterBankChannelNum(int filter_bank_channel_num) {
+    this->primitive_->value.AsMfcc()->filterBankChannelNum = filter_bank_channel_num;
+  }
+  void SetDctCoeffNum(int dct_coeff_num) { this->primitive_->value.AsMfcc()->dctCoeffNum = dct_coeff_num; }
+#else
+  Mfcc() = default;
+
+  int UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) override;
+#endif
+  float GetFreqUpperLimit() const;
+  float GetFreqLowerLimit() const;
+  int GetFilterBankChannelNum() const;
+  int GetDctCoeffNum() const;
+  int InferShape(std::vector<lite::Tensor *> inputs_, std::vector<lite::Tensor *> outputs_) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+
+#endif  // LITE_MINDSPORE_LITE_C_OPS_MFCC_H_
diff --git a/mindspore/lite/src/ops/primitive_c.cc b/mindspore/lite/src/ops/primitive_c.cc
index e187a41ce2..8f04785bd1 100644
--- a/mindspore/lite/src/ops/primitive_c.cc
+++ b/mindspore/lite/src/ops/primitive_c.cc
@@ -137,6 +137,11 @@
 #include "src/ops/upsample.h"
 #include "src/ops/layer_norm.h"
 #include "src/ops/non_max_suppression.h"
+#include "src/ops/rfft.h"
+#include "src/ops/fft_real.h"
+#include "src/ops/fft_imag.h"
+#include "src/ops/audio_spectrogram.h"
+#include "src/ops/mfcc.h"
 #include "src/ops/identity.h"
 
 #ifdef SUPPORT_TRAIN
@@ -775,6 +780,16 @@ PrimitiveC *PrimitiveC::Create(mindspore::schema::PrimitiveT *primitive) {
       return new NonMaxSuppression(primitive);
     case schema::PrimitiveType_Identity:
       return new Identity(primitive);
+    case schema::PrimitiveType_Rfft:
+      return new Rfft(primitive);
+    case schema::PrimitiveType_FftReal:
+      return new FftReal(primitive);
+    case schema::PrimitiveType_FftImag:
+      return new FftImag(primitive);
+    case schema::PrimitiveType_AudioSpectrogram:
+      return new AudioSpectrogram(primitive);
+    case schema::PrimitiveType_Mfcc:
+      return new Mfcc(primitive);
 
 #ifdef SUPPORT_TRAIN
     case schema::PrimitiveType_ActivationGrad:
diff --git a/mindspore/lite/src/ops/rfft.cc b/mindspore/lite/src/ops/rfft.cc
new file mode 100644
index 0000000000..e83d3210bf
--- /dev/null
+++ b/mindspore/lite/src/ops/rfft.cc
@@ -0,0 +1,66 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "src/ops/rfft.h"
+
+#ifndef PRIMITIVE_WRITEABLE
+#include "src/ops/ops_register.h"
+#endif
+
+namespace mindspore {
+namespace lite {
+#ifdef PRIMITIVE_WRITEABLE
+int Rfft::GetFftLength() const { return this->primitive_->value.AsRfft()->fftLength; }
+
+void Rfft::SetFftLength(int fft_length) { this->primitive_->value.AsRfft()->fftLength = fft_length; }
+
+#else
+int Rfft::GetFftLength() const { return this->primitive_->value_as_Rfft()->fftLength(); }
+int Rfft::UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) {
+  MS_ASSERT(nullptr != primitive);
+  MS_ASSERT(nullptr != fbb);
+  auto attr = primitive->value_as_Rfft();
+  if (attr == nullptr) {
+    MS_LOG(ERROR) << "value_as_Add return nullptr";
+    return RET_ERROR;
+  }
+  auto val_offset = schema::CreateRfft(*fbb, attr->fftLength());
+  auto prim_offset = schema::CreatePrimitive(*fbb, schema::PrimitiveType_Rfft, val_offset.o);
+  fbb->Finish(prim_offset);
+  return RET_OK;
+}
+
+PrimitiveC *RfftCreator(const schema::Primitive *primitive) { return PrimitiveC::NewPrimitiveC<Rfft>(primitive); }
+Registry RfftRegistry(schema::PrimitiveType_Rfft, RfftCreator);
+#endif
+int Rfft::InferShape(std::vector<Tensor *> inputs_, std::vector<Tensor *> outputs_) {
+  auto input = inputs_.front();
+  MS_ASSERT(input != nullptr);
+  auto output = outputs_.front();
+  MS_ASSERT(output != nullptr);
+  output->set_data_type(TypeId::kNumberTypeComplex64);
+  output->SetFormat(input->GetFormat());
+  if (!GetInferFlag()) {
+    return RET_OK;
+  }
+  auto input_shape = input->shape();
+  input_shape[input_shape.size() - 1] = GetFftLength() / 2 + 1;
+  input_shape.push_back(2);
+  outputs_.front()->set_shape(input_shape);
+  return RET_OK;
+}
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/src/ops/rfft.h b/mindspore/lite/src/ops/rfft.h
new file mode 100644
index 0000000000..08c01d03ac
--- /dev/null
+++ b/mindspore/lite/src/ops/rfft.h
@@ -0,0 +1,45 @@
+/**
+ * Copyright 2019-2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LITE_MINDSPORE_LITE_C_OPS_RFFT_H_
+#define LITE_MINDSPORE_LITE_C_OPS_RFFT_H_
+
+#include <vector>
+#include <set>
+#include <cmath>
+#include "src/ops/primitive_c.h"
+
+namespace mindspore {
+namespace lite {
+class Rfft : public PrimitiveC {
+ public:
+#ifdef PRIMITIVE_WRITEABLE
+  MS_DECLARE_PARENT(Rfft, PrimitiveC);
+  Rfft() = default;
+  explicit Rfft(schema::PrimitiveT *primitive) : PrimitiveC(primitive) {}
+  void SetFftLength(int fft_length);
+#else
+  Rfft() = default;
+
+  int UnPackToFlatBuilder(const schema::Primitive *primitive, flatbuffers::FlatBufferBuilder *fbb) override;
+#endif
+  int GetFftLength() const;
+  int InferShape(std::vector<lite::Tensor *> inputs_, std::vector<lite::Tensor *> outputs_) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+
+#endif  // LITE_MINDSPORE_LITE_C_OPS_RFFT_H_
diff --git a/mindspore/lite/tools/converter/parser/caffe/caffe_elu_parser.cc b/mindspore/lite/tools/converter/parser/caffe/caffe_elu_parser.cc
new file mode 100644
index 0000000000..c1eb314291
--- /dev/null
+++ b/mindspore/lite/tools/converter/parser/caffe/caffe_elu_parser.cc
@@ -0,0 +1,56 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "tools/converter/parser/caffe/caffe_elu_parser.h"
+#include <memory>
+
+namespace mindspore {
+namespace lite {
+STATUS CaffeEluParser::Parse(const caffe::LayerParameter &proto, const caffe::LayerParameter &weight,
+                             schema::CNodeT *op, std::vector<schema::TensorT *> *weightVec) {
+  MS_LOG(DEBUG) << "parse CaffeEluParser";
+  if (op == nullptr) {
+    MS_LOG(ERROR) << "op is null";
+    return RET_NULL_PTR;
+  }
+  op->primitive = std::make_unique<schema::PrimitiveT>();
+  if (op->primitive == nullptr) {
+    MS_LOG(ERROR) << "op->primitive is null";
+    return RET_NULL_PTR;
+  }
+
+  std::unique_ptr<schema::EluT> attr = std::make_unique<schema::EluT>();
+  if (attr == nullptr) {
+    MS_LOG(ERROR) << "new op failed";
+    return RET_NULL_PTR;
+  }
+
+  if (proto.has_elu_param()) {
+    const caffe::ELUParameter eluParameter = proto.elu_param();
+    if (eluParameter.has_alpha()) {
+      attr->alpha = eluParameter.alpha();
+    }
+  }
+
+  op->name = proto.name();
+  op->primitive->value.type = schema::PrimitiveType_Elu;
+  op->primitive->value.value = attr.release();
+  return RET_OK;
+}
+
+CaffeNodeRegistrar g_caffeEluParser("ELU", new CaffeEluParser());
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/tools/converter/parser/caffe/caffe_elu_parser.h b/mindspore/lite/tools/converter/parser/caffe/caffe_elu_parser.h
new file mode 100644
index 0000000000..75b8f19e4b
--- /dev/null
+++ b/mindspore/lite/tools/converter/parser/caffe/caffe_elu_parser.h
@@ -0,0 +1,36 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_CAFFE_CAFFE_ELU_PARSER_H_
+#define MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_CAFFE_CAFFE_ELU_PARSER_H_
+
+#include <vector>
+#include "tools/converter/parser/caffe/caffe_node_parser.h"
+#include "tools/converter/parser/caffe/caffe_node_parser_registry.h"
+
+namespace mindspore {
+namespace lite {
+class CaffeEluParser : public CaffeNodeParser {
+ public:
+  CaffeEluParser() : CaffeNodeParser("elu") {}
+
+  STATUS Parse(const caffe::LayerParameter &proto, const caffe::LayerParameter &weight, schema::CNodeT *op,
+               std::vector<schema::TensorT *> *weightVec) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+
+#endif  // MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_CAFFE_CAFFE_ELU_PARSER_H_
diff --git a/mindspore/lite/tools/converter/parser/caffe/caffe_model_parser.cc b/mindspore/lite/tools/converter/parser/caffe/caffe_model_parser.cc
index b3d8e38243..4c4649ce9d 100644
--- a/mindspore/lite/tools/converter/parser/caffe/caffe_model_parser.cc
+++ b/mindspore/lite/tools/converter/parser/caffe/caffe_model_parser.cc
@@ -243,7 +243,7 @@ STATUS CaffeModelParser::ParseLayer(const caffe::NetParameter &proto, const caff
       auto status_node = nodeParser->Parse(layer, layerP, op.get(), &weightVec);
       if (status_node != RET_OK) {
         interrupt = true;
-        if (status_node == RET_NOT_SUPPORT) {
+        if (status_node == RET_NOT_FIND_OP) {
           NoSupportOp::GetInstance()->InsertOp(layer.type());
         } else {
           MS_LOG(ERROR) << "Parse weight for " << layer.name() << " Failed!";
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_deconv_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_deconv_parser.cc
index 4bb9867ff1..24ad60b9fd 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_deconv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_deconv_parser.cc
@@ -156,8 +156,8 @@ STATUS OnnxDeConvParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::N
 
   if (attr->group != 1) {
     if (!ParseGroupDeConvolution(attr, op)) {
-      MS_LOG(ERROR) << "Convert DeConvolution to DeDepthwise failed";
-      return RET_ERROR;
+      MS_LOG(ERROR) << "Convert DeConvolution to DeDepthwise failed, generalized group deconv hasn't support";
+      return RET_NOT_SUPPORT;
     }
   } else {
     op->primitive->value.type = schema::PrimitiveType_DeConv2D;
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
index affba69b3c..101ec38850 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
@@ -522,6 +522,7 @@ STATUS OnnxModelParser::ParseSubgraph(schema::CNodeT *dst_op, const onnx::NodePr
   dst_op->primitive->value.value = attr.release();
   return RET_OK;
 }
+
 schema::MetaGraphT *OnnxModelParser::ParseGraph(const onnx::GraphProto &onnx_graph, const QuantType &quantType) {
   TensorCache tensor_cache;
   // dst_graph->name = onnx_graph.name();  // this is not used
@@ -593,6 +594,7 @@ schema::MetaGraphT *OnnxModelParser::ParseGraph(const onnx::GraphProto &onnx_gra
   SetAllTensors(tensor_cache, dst_graph.get());
   return dst_graph.release();
 }
+
 schema::MetaGraphT *OnnxModelParser::ParseToFb(const std::string &modelFile, const std::string &weightFile,
                                                const QuantType &quantType) {
   int status = ValidateFileStr(modelFile, ".onnx");
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc
index e05f1cd75a..956b1ee597 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc
@@ -72,11 +72,12 @@ STATUS TfliteConvParser::Parse(TfliteTensorsInfo *tensors_info, const std::uniqu
   auto data_index = tflite_op->inputs[0];
   const auto &data_tensor = tflite_model->subgraphs[0]->tensors[data_index];
   std::vector<int> params;
-  if (getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->kernelH, attr->kernelW,
-                      &params) != RET_OK) {
+  int status =
+    getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->kernelH, attr->kernelW, &params);
+  if (status != RET_OK && status != RET_NO_CHANGE) {
     MS_LOG(ERROR) << "get padding params failed";
     return RET_ERROR;
-  } else {
+  } else if (status == RET_OK) {
     attr->padUp = params.at(0);
     attr->padDown = params.at(1);
     attr->padLeft = params.at(2);
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc
index 70e5145253..670a8534d6 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc
@@ -73,11 +73,12 @@ STATUS TfliteDeConvParser::Parse(TfliteTensorsInfo *tensors_info, const std::uni
   auto data_index = tflite_op->inputs[2];
   const auto &data_tensor = tflite_model->subgraphs[0]->tensors[data_index];
   std::vector<int> params;
-  if (getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->kernelH, attr->kernelW,
-                      &params) != RET_OK) {
+  int status =
+    getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->kernelH, attr->kernelW, &params);
+  if (status != RET_OK && status != RET_NO_CHANGE) {
     MS_LOG(ERROR) << "get padding params failed";
     return RET_ERROR;
-  } else {
+  } else if (status == RET_OK) {
     attr->padUp = params.at(0);
     attr->padDown = params.at(1);
     attr->padLeft = params.at(2);
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc
index 0d3ab72fbe..043f9fff85 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc
@@ -79,11 +79,12 @@ STATUS TfliteDepthwiseConv2DParser::Parse(TfliteTensorsInfo *tensors_info,
 
   // calculate pad params
   std::vector<int> params;
-  if (getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->kernelH, attr->kernelW,
-                      &params) != RET_OK) {
+  int status =
+    getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->kernelH, attr->kernelW, &params);
+  if (status != RET_OK && status != RET_NO_CHANGE) {
     MS_LOG(ERROR) << "get padding params failed";
     return RET_ERROR;
-  } else {
+  } else if (status == RET_OK) {
     attr->padUp = params.at(0);
     attr->padDown = params.at(1);
     attr->padLeft = params.at(2);
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc
index 4fecaebc56..4c347e04be 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc
@@ -18,6 +18,7 @@
 #include <utility>
 #include <memory>
 #include <vector>
+#include <set>
 #include "tools/common/graph_util.h"
 #include "tools/common/storage.h"
 #include "flatbuffers/flatbuffers.h"
@@ -102,11 +103,6 @@ STATUS TfliteModelParser::ConvertOp(const std::unique_ptr<tflite::ModelT> &tflit
   for (const auto &tflite_op : tflite_subgraph->operators) {
     auto tflite_op_type = (tflite_model->operator_codes[tflite_op->opcode_index])->builtin_code;
     auto op_type = GetMSOpType(tflite_op_type);
-    if (op_type == "CUSTOM") {
-      auto custom_type = (tflite_model->operator_codes[tflite_op->opcode_index])->custom_code;
-      MS_LOG(ERROR) << "CUSTOM op is not supported, the type is " << custom_type;
-      return RET_ERROR;
-    }
 
     auto op = std::make_unique<schema::CNodeT>();
     op->name = op_type + "-" + std::to_string(idx++);
@@ -122,7 +118,9 @@ STATUS TfliteModelParser::ConvertOp(const std::unique_ptr<tflite::ModelT> &tflit
     if (status == RET_OK) {
       status = node_parser->Parse(&tensorsInfo, tflite_op, tflite_model, op.get());
       if (status != RET_OK) {
-        if (status == RET_NOT_SUPPORT) {
+        if (status == RET_NOT_FIND_OP) {
+          op_type =
+            (op_type != "Custom" ? op_type : (tflite_model->operator_codes[tflite_op->opcode_index])->custom_code);
           NoSupportOp::GetInstance()->InsertOp(op_type);
         } else {
           MS_LOG(ERROR) << "node " << op_type.c_str() << " parser failed";
@@ -141,6 +139,16 @@ STATUS TfliteModelParser::ConvertOp(const std::unique_ptr<tflite::ModelT> &tflit
 STATUS TfliteModelParser::ConvertTensor(const std::unique_ptr<tflite::SubGraphT> &tflite_subgraph,
                                         const std::vector<std::unique_ptr<tflite::BufferT>> &tflite_model_buffer,
                                         schema::MetaGraphT *sub_graph) {
+  std::set<int> output_index;
+  for (const auto &tflite_op : tflite_subgraph->operators) {
+    for (size_t j = 0; j < tflite_op->outputs.size(); ++j) {
+      int idx = tflite_op->outputs[j];
+      if (idx < 0) {
+        idx += tflite_subgraph->tensors.size();
+      }
+      output_index.insert(idx);
+    }
+  }
   for (size_t i = 0; i < tensorsInfo.tensorsId.size(); i++) {
     auto idx = tensorsInfo.tensorsId[i];
     if (idx < 0) {
@@ -173,11 +181,16 @@ STATUS TfliteModelParser::ConvertTensor(const std::unique_ptr<tflite::SubGraphT>
         return status;
       }
     }
+
     // set tensor attr
     if (isInput || isConst) {
       tensor->nodeType = schema::NodeType::NodeType_ValueNode;
     } else {
-      tensor->nodeType = schema::NodeType_Parameter;
+      if (output_index.find(idx) == output_index.end() && tflite_tensor->shape[0] == 0) {
+        tensor->nodeType = schema::NodeType::NodeType_ValueNode;
+      } else {
+        tensor->nodeType = schema::NodeType_Parameter;
+      }
     }
 
     // quant param
@@ -246,7 +259,6 @@ STATUS TfliteModelParser::ConvertGroupDepthwiseOp(schema::MetaGraphT *sub_graph)
     if (op->primitive->value.type == schema::PrimitiveType_DepthwiseConv2D) {
       auto attr = op->primitive->value.AsDepthwiseConv2D();
       if (attr->channelMultiplier > 1) {
-        std::unique_ptr<schema::Conv2DT> conv_attr = std::make_unique<schema::Conv2DT>();
         // get channel attr
         if (op->inputIndex.empty()) {
           MS_LOG(ERROR) << "the input of DepthwiseConv2D is null";
@@ -263,7 +275,11 @@ STATUS TfliteModelParser::ConvertGroupDepthwiseOp(schema::MetaGraphT *sub_graph)
           return RET_NULL_PTR;
         }
         auto data_shape = data_tensor->dims;
-
+        if (data_shape.empty()) {
+          MS_LOG(DEBUG) << "the tensor's shape is dynamic, which obtain only when running";
+          return RET_NO_CHANGE;
+        }
+        std::unique_ptr<schema::Conv2DT> conv_attr = std::make_unique<schema::Conv2DT>();
         if (data_shape[3] == 1) {
           conv_attr->channelIn = data_shape[3];
           conv_attr->channelOut = conv_attr->channelIn * attr->channelMultiplier;
@@ -372,7 +388,7 @@ schema::MetaGraphT *TfliteModelParser::ParseToFb(const std::string &model_file,
 
   // update for depthwiseConv
   status = ConvertGroupDepthwiseOp(meta_graph.get());
-  if (status != RET_OK) {
+  if (status != RET_OK && status != RET_NO_CHANGE) {
     MS_LOG(ERROR) << "convert group depthwise conv failed";
     ReturnCode::GetSingleReturnCode()->UpdateReturnCode(status);
     return nullptr;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_node_parser.h b/mindspore/lite/tools/converter/parser/tflite/tflite_node_parser.h
index 1c8378accc..a426d70a78 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_node_parser.h
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_node_parser.h
@@ -86,6 +86,10 @@ class TfliteNodeParser {
       return RET_NULL_PTR;
     }
     auto data_ptr = buf_data->data.data();
+    if (data_ptr == nullptr) {
+      MS_LOG(DEBUG) << "data is not a constant";
+      return RET_NO_CHANGE;
+    }
     switch (tflite_tensors[tensor_index]->type) {
       case tflite::TensorType_UINT8: {
         for (int i = 0; i < count; i++) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc
index 0c7ab33cc1..b8dc009ceb 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc
@@ -71,11 +71,11 @@ STATUS TflitePadParser::Parse(TfliteTensorsInfo *tensors_info, const std::unique
         break;
       default:
         MS_LOG(ERROR) << "paddingmode:" << tflite_attr->mode << " don't support";
-        return RET_INVALID_OP_ATTR;
+        return RET_NOT_SUPPORT;
     }
   } else {
     MS_LOG(ERROR) << "this pad:" << node_name << " hasn't been supported";
-    return RET_NOT_SUPPORT;
+    return RET_NOT_FIND_OP;
   }
 
   op->primitive->value.type = schema::PrimitiveType_Pad;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc
index 3d47e9bbed..57832f8ced 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc
@@ -71,11 +71,12 @@ STATUS TflitePoolingParser::Parse(TfliteTensorsInfo *tensors_info, const std::un
   auto data_index = tflite_op->inputs[0];
   const auto &data_tensor = tflite_model->subgraphs[0]->tensors[data_index];
   std::vector<int> params;
-  if (getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->windowH, attr->windowW,
-                      &params) != RET_OK) {
+  int status =
+    getPaddingParam(data_tensor, attr->padMode, attr->strideH, attr->strideW, attr->windowH, attr->windowW, &params);
+  if (status != RET_OK && status != RET_NO_CHANGE) {
     MS_LOG(ERROR) << "get padding params failed";
     return RET_ERROR;
-  } else {
+  } else if (status == RET_OK) {
     attr->padUp = params.at(0);
     attr->padDown = params.at(1);
     attr->padLeft = params.at(2);
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc
index ff3244c260..72ccac5f1e 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc
@@ -41,15 +41,31 @@ STATUS TfliteRangeParser::Parse(TfliteTensorsInfo *tensors_info, const std::uniq
   }
 
   attr->dType = 0;
-  //  attr->start
-  //  attr->limit
-  //  attr->delta
-
+  std::vector<int> limit;
+  std::vector<int> delta;
+  int status = GetTfliteData(tflite_op->inputs[1], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, limit);
+  if (status != RET_OK && status != RET_NO_CHANGE) {
+    MS_LOG(ERROR) << "range -> limit get failed";
+    return RET_ERROR;
+  } else if (status == RET_OK) {
+    status = GetTfliteData(tflite_op->inputs[2], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, delta);
+    if (status != RET_OK && status != RET_NO_CHANGE) {
+      MS_LOG(ERROR) << "stridedSlice -> end get failed";
+      return RET_ERROR;
+    }
+  }
+  if (status == RET_OK) {
+    attr->limit = limit.front();
+    attr->delta = delta.front();
+  }
   op->primitive->value.type = schema::PrimitiveType_Range;
   op->primitive->value.value = attr.release();
 
-  AddOpInput(op, tensors_info, tflite_op->inputs[0], tflite_model->subgraphs[0]->tensors.size(),
-             schema::Format::Format_NHWC);
+  int input_num = status == RET_OK ? 1 : 3;
+  for (int i = 0; i < input_num; ++i) {
+    AddOpInput(op, tensors_info, tflite_op->inputs[i], tflite_model->subgraphs[0]->tensors.size(),
+               schema::Format::Format_NHWC);
+  }
   AddOpOutput(op, tensors_info, tflite_op->outputs[0], tflite_model->subgraphs[0]->tensors.size(),
               schema::Format::Format_NHWC);
   return RET_OK;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc
index b764a9d3b9..70a214c5b9 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc
@@ -69,7 +69,7 @@ STATUS TfliteReduceParser::Parse(TfliteTensorsInfo *tensors_info, const std::uni
   } else if (std::strcmp(node_name, "ReduceAny") == 0) {
     // attr->mode;
     MS_LOG(ERROR) << "ms-lite haven't supported REDUCE_ANY now";
-    return RET_NOT_FIND_OP;
+    return RET_NOT_SUPPORT;
   }
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->axes)) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc
index 66da0beff5..351a2cf75b 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc
@@ -67,14 +67,15 @@ STATUS TfliteSplitParser::Parse(TfliteTensorsInfo *tensors_info, const std::uniq
     return RET_ERROR;
   }
   attr->splitDim = axis;
-  if (tensor_shape[axis] % num_splits != 0) {
+  if (tensor_shape[axis] % num_splits != 0 && tensor_shape[axis] / num_splits != 0) {
     MS_LOG(ERROR) << "num_splits can't divide tensor's length at axis " << axis;
     return RET_ERROR;
   }
   attr->numberSplit = num_splits;
-
-  for (int i = 0; i < num_splits; i++) {
-    attr->sizeSplits.push_back(tensor_shape[axis] / num_splits);
+  if (tensor_shape[axis] / num_splits != 0) {
+    for (int i = 0; i < num_splits; i++) {
+      attr->sizeSplits.push_back(tensor_shape[axis] / num_splits);
+    }
   }
 
   op->primitive->value.type = schema::PrimitiveType_Split;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc
index a66f8936d8..6242d05e2b 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc
@@ -52,17 +52,24 @@ STATUS TfliteStridedSliceParser::Parse(TfliteTensorsInfo *tensors_info,
   attr->newAxisMask = tflite_attr->new_axis_mask;
   attr->shrinkAxisMask = tflite_attr->shrink_axis_mask;
 
-  if (GetTfliteData(tflite_op->inputs[1], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->begin)) {
+  int status =
+    GetTfliteData(tflite_op->inputs[1], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->begin);
+  if (status != RET_OK && status != RET_NO_CHANGE) {
     MS_LOG(ERROR) << "stridedSlice -> begin get failed";
     return RET_ERROR;
-  }
-  if (GetTfliteData(tflite_op->inputs[2], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->end)) {
-    MS_LOG(ERROR) << "stridedSlice -> end get failed";
-    return RET_ERROR;
-  }
-  if (GetTfliteData(tflite_op->inputs[3], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->stride)) {
-    MS_LOG(ERROR) << "stridedSlice -> stride get failed";
-    return RET_ERROR;
+  } else if (status == RET_OK) {
+    status = GetTfliteData(tflite_op->inputs[2], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->end);
+    if (status != RET_OK && status != RET_NO_CHANGE) {
+      MS_LOG(ERROR) << "stridedSlice -> end get failed";
+      return RET_ERROR;
+    } else if (status == RET_OK) {
+      status =
+        GetTfliteData(tflite_op->inputs[3], tflite_model->subgraphs[0]->tensors, tflite_model->buffers, attr->stride);
+      if (status != RET_OK && status != RET_NO_CHANGE) {
+        MS_LOG(ERROR) << "stridedSlice -> stride get failed";
+        return RET_ERROR;
+      }
+    }
   }
   attr->isScale.assign(tflite_model->subgraphs[0]->tensors[tflite_op->inputs[0]]->shape.begin(),
                        tflite_model->subgraphs[0]->tensors[tflite_op->inputs[0]]->shape.end());
@@ -70,8 +77,11 @@ STATUS TfliteStridedSliceParser::Parse(TfliteTensorsInfo *tensors_info,
   op->primitive->value.type = schema::PrimitiveType_StridedSlice;
   op->primitive->value.value = attr.release();
 
-  AddOpInput(op, tensors_info, tflite_op->inputs[0], tflite_model->subgraphs[0]->tensors.size(),
-             schema::Format::Format_NHWC);
+  int input_num = status == RET_OK ? 1 : 4;
+  for (int i = 0; i < input_num; ++i) {
+    AddOpInput(op, tensors_info, tflite_op->inputs[i], tflite_model->subgraphs[0]->tensors.size(),
+               schema::Format::Format_NHWC);
+  }
   AddOpOutput(op, tensors_info, tflite_op->outputs[0], tflite_model->subgraphs[0]->tensors.size(),
               schema::Format::Format_NHWC);
   return RET_OK;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_util.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_util.cc
index da59b6768d..63347bee39 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_util.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_util.cc
@@ -198,7 +198,10 @@ STATUS getPaddingParam(const std::unique_ptr<tflite::TensorT> &tensor, schema::P
     MS_LOG(ERROR) << "the input tensor is null";
     return RET_ERROR;
   }
-
+  if (tensor->shape.empty()) {
+    MS_LOG(DEBUG) << "the tensor's shape is dynamic, which obtain nly when running.";
+    return RET_NO_CHANGE;
+  }
   int padUp = 0;
   int padDown = 0;
   int padLeft = 0;