diff --git a/mindspore/lite/schema/model.fbs b/mindspore/lite/schema/model.fbs
index 98bc3f5e81..813d51dfdf 100644
--- a/mindspore/lite/schema/model.fbs
+++ b/mindspore/lite/schema/model.fbs
@@ -232,7 +232,8 @@ union PrimitiveType {
     AssignAdd,
     OnesLike,
     BinaryCrossEntropyGrad,
-    BinaryCrossEntropy
+    BinaryCrossEntropy,
+    LpNormalization,
 }
 
 enum QuantType: int {
diff --git a/mindspore/lite/schema/ops.fbs b/mindspore/lite/schema/ops.fbs
index 9043c10874..a66cd7be38 100644
--- a/mindspore/lite/schema/ops.fbs
+++ b/mindspore/lite/schema/ops.fbs
@@ -553,6 +553,7 @@ table Slice {
     axes: [int];
     begin: [int];
     size: [int];
+    step: [int];
 }
 
 table Floor {
@@ -1128,3 +1129,8 @@ table BinaryCrossEntropy {
 table BinaryCrossEntropyGrad {
   reduction : int = 1;
 }
+
+table LpNormalization {
+    axis : int;
+    p : int;
+}
diff --git a/mindspore/lite/src/model_common.cc b/mindspore/lite/src/model_common.cc
index b734823368..55853c94b5 100644
--- a/mindspore/lite/src/model_common.cc
+++ b/mindspore/lite/src/model_common.cc
@@ -92,6 +92,7 @@ Model *ImportFromBuffer(const char *model_buf, size_t size, bool take_buf) {
   } else {
     if (size == 0) {
       MS_LOG(ERROR) << "malloc size is equal to 0";
+      delete (model);
       return nullptr;
     }
     model->buf = reinterpret_cast<char *>(malloc(size));
diff --git a/mindspore/lite/src/runtime/kernel/arm/fp32/cast.cc b/mindspore/lite/src/runtime/kernel/arm/fp32/cast.cc
index e98e95deba..0df744465c 100644
--- a/mindspore/lite/src/runtime/kernel/arm/fp32/cast.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/fp32/cast.cc
@@ -165,6 +165,7 @@ REG_KERNEL(kCPU, kNumberTypeFloat32, PrimitiveType_Cast, CpuCastFp32KernelCreato
 REG_KERNEL(kCPU, kNumberTypeUInt8, PrimitiveType_Cast, CpuCastFp32KernelCreator)
 REG_KERNEL(kCPU, kNumberTypeInt8, PrimitiveType_Cast, CpuCastFp32KernelCreator)
 REG_KERNEL(kCPU, kNumberTypeInt32, PrimitiveType_Cast, CpuCastFp32KernelCreator)
+REG_KERNEL(kCPU, kNumberTypeBool, PrimitiveType_Cast, CpuCastFp32KernelCreator)
 #ifndef ENABLE_ARM
 REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Cast, CpuCastFp32KernelCreator)
 #endif
diff --git a/mindspore/lite/src/scheduler.cc b/mindspore/lite/src/scheduler.cc
index e782ad0223..da83f9556e 100644
--- a/mindspore/lite/src/scheduler.cc
+++ b/mindspore/lite/src/scheduler.cc
@@ -300,7 +300,7 @@ TypeId Scheduler::GetFirstFp32Fp16OrInt8Type(const std::vector<Tensor *> &in_ten
   for (const auto &tensor : in_tensors) {
     auto dtype = tensor->data_type();
     if (dtype == kNumberTypeFloat32 || dtype == kNumberTypeFloat16 || dtype == kNumberTypeInt8 ||
-        dtype == kNumberTypeInt32) {
+        dtype == kNumberTypeInt32 || dtype == kNumberTypeBool) {
       return dtype;
     }
   }
@@ -346,7 +346,7 @@ kernel::SubGraphType Scheduler::GetKernelSubGraphType(kernel::LiteKernel *kernel
     if (desc.data_type == kNumberTypeFloat16) {
       return kernel::kCpuFP16SubGraph;
     } else if (desc.data_type == kNumberTypeFloat32 || desc.data_type == kNumberTypeInt8 ||
-               desc.data_type == kNumberTypeInt32) {
+               desc.data_type == kNumberTypeInt32 || desc.data_type == kNumberTypeBool) {
       return kernel::kCpuFP32SubGraph;
     }
   }
diff --git a/mindspore/lite/tools/anf_importer/import_from_meta_graphT.cc b/mindspore/lite/tools/anf_importer/import_from_meta_graphT.cc
index 99fef04948..c0576c92d5 100644
--- a/mindspore/lite/tools/anf_importer/import_from_meta_graphT.cc
+++ b/mindspore/lite/tools/anf_importer/import_from_meta_graphT.cc
@@ -170,7 +170,7 @@ int AnfImporterFromMetaGraphT::ConverterCNode() {
       auto node = GetNode(j);
       if (nullptr == node) {
         MS_LOG(ERROR) << "Can't find input node.";
-        return RET_NOT_FIND_OP;
+        return RET_ERROR;
       }
       op_inputs.push_back(node);
     }
@@ -203,7 +203,7 @@ int AnfImporterFromMetaGraphT::AddReturnCNode() {
       auto cNode = GetNode(tensor_id);
       if (nullptr == cNode) {
         MS_LOG(ERROR) << "Can't find input node.";
-        return RET_NOT_FIND_OP;
+        return RET_ERROR;
       }
       make_tuple_inputs.emplace_back(cNode);
     }
@@ -233,7 +233,7 @@ int AnfImporterFromMetaGraphT::AddReturnCNode() {
     auto cnode = GetNode(meta_graph_->outputIndex.front());
     if (nullptr == cnode) {
       MS_LOG(ERROR) << "Can't find input node.";
-      return RET_NOT_FIND_OP;
+      return RET_ERROR;
     }
     op_inputs.emplace_back(cnode);
     auto return_cnode = func_graph_->NewCNode(op_inputs);
diff --git a/mindspore/lite/tools/common/node_util.cc b/mindspore/lite/tools/common/node_util.cc
index 2ca56c4d85..5d320e198e 100644
--- a/mindspore/lite/tools/common/node_util.cc
+++ b/mindspore/lite/tools/common/node_util.cc
@@ -48,7 +48,9 @@ static const std::vector<schema::PrimitiveType> nhwcOpList = {
   schema::PrimitiveType_FusedBatchNorm,
   schema::PrimitiveType_PReLU,
   schema::PrimitiveType_BiasAdd,
-  schema::PrimitiveType_InstanceNorm};
+  schema::PrimitiveType_InstanceNorm,
+  schema::PrimitiveType_SpaceToDepth,
+  schema::PrimitiveType_DepthToSpace};
 
 static const std::vector<schema::PrimitiveType> nhwcOpDualInputList = {
 #ifdef SUPPORT_TRAIN
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_conv_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_conv_parser.cc
index 746642b194..c8e6293882 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_conv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_conv_parser.cc
@@ -24,9 +24,6 @@ namespace lite {
 constexpr int32_t kSingleGroup = 1;
 bool OnnxConvParser::ParseGroupConvolution(const std::unique_ptr<schema::Conv2DT> &attr, schema::CNodeT *op) {
   MS_LOG(DEBUG) << "onnx DepthwiseConvParser";
-  if (attr == nullptr || attr->group != attr->channelIn) {
-    return false;
-  }
   std::unique_ptr<schema::DepthwiseConv2DT> depthwiseConv2DParam = std::make_unique<schema::DepthwiseConv2DT>();
   if (depthwiseConv2DParam == nullptr) {
     MS_LOG(ERROR) << "new op failed";
@@ -172,7 +169,7 @@ STATUS OnnxConvParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::Nod
     attr->activationType = schema::ActivationType_NO_ACTIVATION;
   }
 
-  if (attr->group > kSingleGroup && attr->group == attr->channelIn) {
+  if (attr != nullptr && attr->group > kSingleGroup && attr->group == attr->channelIn) {
     if (!ParseGroupConvolution(attr, op)) {
       MS_LOG(ERROR) << "Convert Convolution to Depthwise failed";
       return RET_ERROR;
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_lp_norm_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_lp_norm_parser.cc
new file mode 100644
index 0000000000..d02c4ec4fb
--- /dev/null
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_lp_norm_parser.cc
@@ -0,0 +1,57 @@
+/**
+ * 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/onnx/onnx_lp_norm_parser.h"
+#include <memory>
+
+namespace mindspore {
+namespace lite {
+STATUS OnnxLpNormParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::NodeProto &onnx_node,
+                               schema::CNodeT *op) {
+  MS_LOG(DEBUG) << "onnx LpNormParser";
+  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::LpNormalizationT> attr = std::make_unique<schema::LpNormalizationT>();
+  if (attr == nullptr) {
+    MS_LOG(ERROR) << "new op failed";
+    return RET_NULL_PTR;
+  }
+
+  auto onnx_node_attr = onnx_node.attribute();
+  for (int i = 0; i < onnx_node_attr.size(); ++i) {
+    if (onnx_node_attr.at(i).name() == "axis") {
+      attr->axis = onnx_node_attr.at(i).i();
+    } else if (onnx_node_attr.at(i).name() == "p") {
+      attr->p = onnx_node_attr.at(i).i();
+    }
+  }
+
+  op->primitive->value.type = schema::PrimitiveType_LpNormalization;
+  op->primitive->value.value = attr.release();
+  return RET_OK;
+}
+
+OnnxNodeRegistrar g_onnxLpNormParser("LpNormalization", new OnnxLpNormParser());
+}  // namespace lite
+}  // namespace mindspore
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_lp_norm_parser.h b/mindspore/lite/tools/converter/parser/onnx/onnx_lp_norm_parser.h
new file mode 100644
index 0000000000..03cbeb3005
--- /dev/null
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_lp_norm_parser.h
@@ -0,0 +1,34 @@
+/**
+ * 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_ONNX_LP_NORM_PARSER_H
+#define MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_ONNX_LP_NORM_PARSER_H
+
+#include "tools/converter/parser/onnx/onnx_node_parser.h"
+#include "tools/converter/parser/onnx/onnx_node_parser_registry.h"
+
+namespace mindspore {
+namespace lite {
+class OnnxLpNormParser : public OnnxNodeParser {
+ public:
+  OnnxLpNormParser() : OnnxNodeParser("LpNorm") {}
+  ~OnnxLpNormParser() = default;
+
+  STATUS Parse(const onnx::GraphProto &onnx_graph, const onnx::NodeProto &onnx_node, schema::CNodeT *op) override;
+};
+}  // namespace lite
+}  // namespace mindspore
+#endif  // MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_ONNX_LP_NORM_PARSER_H
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_lrn_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_lrn_parser.cc
index 356df10005..484a12ba1e 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_lrn_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_lrn_parser.cc
@@ -37,40 +37,21 @@ STATUS OnnxLrnParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::Node
     return RET_NULL_PTR;
   }
 
-  auto onnx_node_attr = onnx_node.attribute().at(0);
+  auto onnx_node_attr = onnx_node.attribute();
   int32_t size = 0;
-  if (onnx_node_attr.name() == "size") {
-    size = static_cast<int32_t>(onnx_node_attr.i());
-    attr->depth_radius = static_cast<int32_t>(size / 2);
-  } else {
-    MS_LOG(ERROR) << "the first attr is not size";
-    return RET_ERROR;
-  }
-
-  onnx_node_attr = onnx_node.attribute().at(1);
-  if (onnx_node_attr.name() == "alpha") {
-    auto alpha = onnx_node_attr.f();
-    attr->alpha = alpha / size;
-  } else {
-    MS_LOG(ERROR) << "the second attr is not alpha";
-    return RET_ERROR;
-  }
-
-  onnx_node_attr = onnx_node.attribute().at(2);
-  if (onnx_node_attr.name() == "beta") {
-    attr->beta = onnx_node_attr.f();
-  } else {
-    MS_LOG(ERROR) << "the third attr is not beta";
-    return RET_ERROR;
-  }
-
-  onnx_node_attr = onnx_node.attribute().at(3);
-  if (onnx_node_attr.name() == "bias") {
-    attr->bias = onnx_node_attr.f();
-  } else {
-    MS_LOG(ERROR) << "the third attr is not bias";
-    return RET_ERROR;
+  for (int i = 0; i < onnx_node_attr.size(); ++i) {
+    if (onnx_node_attr.at(i).name() == "alpha") {
+      attr->alpha = onnx_node_attr.at(i).f();
+    } else if (onnx_node_attr.at(i).name() == "beta") {
+      attr->beta = onnx_node_attr.at(i).f();
+    } else if (onnx_node_attr.at(i).name() == "bias") {
+      attr->bias = onnx_node_attr.at(i).f();
+    } else if (onnx_node_attr.at(i).name() == "size") {
+      size = static_cast<int32_t>(onnx_node_attr.at(i).i());
+      attr->depth_radius = size / 2;
+    }
   }
+  attr->alpha /= size;
 
   op->primitive->value.type = schema::PrimitiveType_LocalResponseNormalization;
   op->primitive->value.value = attr.release();
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_slice_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_slice_parser.cc
index c9b3eb0076..9629057ab4 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_slice_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_slice_parser.cc
@@ -42,6 +42,7 @@ STATUS OnnxSliceParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::No
   std::vector<int> axes;
   std::vector<int> starts;
   std::vector<int> ends;
+  std::vector<int> steps;
   for (const auto &onnx_node_attr : onnx_node.attribute()) {
     const auto &attribute_name = onnx_node_attr.name();
     if (attribute_name == "starts") {
@@ -62,8 +63,63 @@ STATUS OnnxSliceParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::No
       for (int i = 0; i < num; ++i) {
         ends.push_back(static_cast<int>(onnx_node_attr.ints()[i]));
       }
+    } else if (attribute_name == "steps") {
+      const int num = onnx_node_attr.ints_size();
+      steps.clear();
+      for (int i = 0; i < num; ++i) {
+        steps.push_back(static_cast<int>(onnx_node_attr.ints()[i]));
+      }
+    }
+  }
+
+  if (onnx_node.input_size() > 1) {
+    const auto &starts_name = onnx_node.input(1);
+    for (const auto &it : onnx_graph.initializer()) {
+      if (it.name() == starts_name) {
+        starts.clear();
+        for (int i = 0; i < it.int32_data_size(); ++i) {
+          starts.push_back(it.int32_data(i));
+        }
+      }
+    }
+  }
+
+  if (onnx_node.input_size() > 2) {
+    const auto &ends_name = onnx_node.input(2);
+    for (const auto &it : onnx_graph.initializer()) {
+      if (it.name() == ends_name) {
+        ends.clear();
+        for (int i = 0; i < it.int32_data_size(); ++i) {
+          ends.push_back(it.int32_data(i));
+        }
+      }
+    }
+  }
+
+  if (onnx_node.input_size() > 3) {
+    const auto &axes_name = onnx_node.input(3);
+    for (const auto &it : onnx_graph.initializer()) {
+      if (it.name() == axes_name) {
+        axes.clear();
+        for (int i = 0; i < it.int32_data_size(); ++i) {
+          axes.push_back(it.int32_data(i));
+        }
+      }
     }
   }
+
+  if (onnx_node.input_size() > 4) {
+    const auto &steps_name = onnx_node.input(4);
+    for (const auto &it : onnx_graph.initializer()) {
+      if (it.name() == steps_name) {
+        steps.clear();
+        for (int i = 0; i < it.int32_data_size(); ++i) {
+          steps.push_back(it.int32_data(i));
+        }
+      }
+    }
+  }
+
   std::vector<int> sizes(starts.size(), -1);
   for (size_t i = 0; i < starts.size(); ++i) {
     sizes[i] = (ends[i] < 0 ? ends[i] : ends[i] - starts[i]);
@@ -71,6 +127,7 @@ STATUS OnnxSliceParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::No
   attr->axes = axes;
   attr->begin = starts;
   attr->size = sizes;
+  attr->step = steps;
   op->primitive->value.type = schema::PrimitiveType_Slice;
   op->primitive->value.value = attr.release();
   return RET_OK;
diff --git a/mindspore/lite/tools/optimizer/common/gllo_utils.cc b/mindspore/lite/tools/optimizer/common/gllo_utils.cc
index 9f0cad9dfe..9bcedaa571 100644
--- a/mindspore/lite/tools/optimizer/common/gllo_utils.cc
+++ b/mindspore/lite/tools/optimizer/common/gllo_utils.cc
@@ -501,7 +501,7 @@ std::shared_ptr<std::vector<std::pair<AnfNodePtr, int>>> GetRealNodeUsedList(con
   auto iter = manager->node_users().find(node);
   if (iter == manager->node_users().end()) {
     MS_LOG(ERROR) << "node has no output in manager";
-    lite::ReturnCode::GetSingleReturnCode()->UpdateReturnCode(lite::RET_NOT_FIND_OP);
+    lite::ReturnCode::GetSingleReturnCode()->UpdateReturnCode(lite::RET_ERROR);
     return nullptr;
   }
   auto output_info_list = iter->second;