diff --git a/mindspore/ccsrc/kernel/aicpu/aicpu_kernel_mod.cc b/mindspore/ccsrc/kernel/aicpu/aicpu_kernel_mod.cc
index 5028c757f2..d18e0fbe6f 100644
--- a/mindspore/ccsrc/kernel/aicpu/aicpu_kernel_mod.cc
+++ b/mindspore/ccsrc/kernel/aicpu/aicpu_kernel_mod.cc
@@ -111,6 +111,9 @@ bool AicpuOpKernelMod::Launch(const std::vector<AddressPtr> &inputs, const std::
 
   CreateCpuKernelInfo(inputs, outputs);
   auto *stream = reinterpret_cast<rtStream_t *>(stream_ptr);
+  if (node_name_ == "TopK") {
+    node_name_ = "TopKV2";
+  }
   MS_LOG(INFO) << "Aicpu launch, node_so_:" << node_so_ << ", node name:" << node_name_
                << ", args_size:" << args_.length();
   if (rtCpuKernelLaunch(reinterpret_cast<const void *>(node_so_.c_str()),
@@ -137,6 +140,9 @@ vector<TaskInfoPtr> AicpuOpKernelMod::GenTask(const std::vector<AddressPtr> &inp
   (void)std::transform(std::begin(outputs), std::end(outputs), std::back_inserter(output_data_addrs),
                        [](const AddressPtr &output) -> void * { return output->addr; });
 
+  if (node_name_ == "TopK") {
+    node_name_ = "TopKV2";
+  }
   AicpuTaskInfoPtr task_info_ptr = make_shared<ge::model_runner::AicpuTaskInfo>(
     stream_id, node_so_, node_name_, node_def_str_, input_data_addrs, output_data_addrs);
 
diff --git a/mindspore/ccsrc/kernel/tbe/tbe_kernel_select.cc b/mindspore/ccsrc/kernel/tbe/tbe_kernel_select.cc
index 63e0fb888d..c96f8c7813 100644
--- a/mindspore/ccsrc/kernel/tbe/tbe_kernel_select.cc
+++ b/mindspore/ccsrc/kernel/tbe/tbe_kernel_select.cc
@@ -568,6 +568,12 @@ void TbeMetadataInfo(const CNodePtr &kernel_node, std::vector<std::shared_ptr<Ke
   MS_EXCEPTION_IF_NULL(kernel_node);
   MS_EXCEPTION_IF_NULL(kernel_info_list);
   std::vector<std::shared_ptr<kernel::KernelBuildInfo>> parse_info_list;
+
+  if (AnfAlgo::GetCNodeName(kernel_node) == kTopKOpName && AnfAlgo::GetNodeAttr<bool>(kernel_node, "sorted") == false) {
+    MS_LOG(INFO) << "will select aicpu topk.";
+    return;
+  }
+
   std::string op_name = AnfAlgo::GetCNodeName(kernel_node);
   auto op_info_ptr = mindspore::kernel::OpLib::FindOp(op_name, OpImplyType::kTBE);
   if (op_info_ptr == nullptr) {
diff --git a/mindspore/ops/_op_impl/aicpu/__init__.py b/mindspore/ops/_op_impl/aicpu/__init__.py
index b0f90a629b..1b01a556cc 100644
--- a/mindspore/ops/_op_impl/aicpu/__init__.py
+++ b/mindspore/ops/_op_impl/aicpu/__init__.py
@@ -17,3 +17,4 @@ from .init_data_set_queue import _init_data_set_queue_aicpu
 from .dropout_genmask import _dropout_genmask_aicpu
 from .get_next import _get_next_aicpu
 from .print_tensor import _print_aicpu
+from .topk import _top_k_aicpu
diff --git a/mindspore/ops/_op_impl/aicpu/topk.py b/mindspore/ops/_op_impl/aicpu/topk.py
new file mode 100644
index 0000000000..95bffbdb8c
--- /dev/null
+++ b/mindspore/ops/_op_impl/aicpu/topk.py
@@ -0,0 +1,32 @@
+# 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.
+# ============================================================================
+
+"""TopK op"""
+from mindspore.ops.op_info_register import op_info_register, AiCPURegOp, DataType
+
+top_k_op_info = AiCPURegOp("TopK") \
+    .fusion_type("OPAQUE") \
+    .attr("sorted", "bool")\
+    .input(0, "intput", "required") \
+    .input(1, "k", "required") \
+    .output(0, "values", "required") \
+    .output(1, "indices", "required") \
+    .dtype_format(DataType.F16_Default, DataType.I32_Default, DataType.F16_Default, DataType.I32_Default) \
+    .get_op_info()
+
+@op_info_register(top_k_op_info)
+def _top_k_aicpu():
+    """TopK aicpu register"""
+    return