diff --git a/include/api/model.h b/include/api/model.h
index c5f2e36f30f..84ec5f9fe78 100644
--- a/include/api/model.h
+++ b/include/api/model.h
@@ -54,6 +54,10 @@ class MS_API Model {
 
   static bool CheckModelSupport(enum DeviceType device_type, ModelType model_type);
 
+  Status Build(const void *model_data, size_t data_size, ModelType model_type,
+               const std::shared_ptr<Context> &model_context = nullptr, const Key &dec_key = {},
+               const std::string &dec_mode = "AES-GCM");
+
  private:
   // api without std::string
   MSTensor GetInputByTensorName(const std::vector<char> &tensor_name);
diff --git a/include/api/serialization.h b/include/api/serialization.h
index 0aaa0f03de3..724ade3960d 100644
--- a/include/api/serialization.h
+++ b/include/api/serialization.h
@@ -27,12 +27,6 @@
 #include "include/api/dual_abi_helper.h"
 
 namespace mindspore {
-using Key = struct Key {
-  const size_t max_key_len = 32;
-  size_t len;
-  unsigned char key[32];
-  Key() : len(0) {}
-};
 
 class MS_API Serialization {
  public:
diff --git a/include/api/types.h b/include/api/types.h
index 63419939767..c45f8666339 100644
--- a/include/api/types.h
+++ b/include/api/types.h
@@ -144,6 +144,12 @@ MSTensor::MSTensor(const std::string &name, enum DataType type, const std::vecto
 
 std::string MSTensor::Name() const { return CharToString(CharName()); }
 
+using Key = struct Key {
+  const size_t max_key_len = 32;
+  size_t len;
+  unsigned char key[32];
+  Key() : len(0) {}
+};
 /// \brief CallBackParam defined input arguments for callBack function.
 struct MSCallBackParam {
   std::string node_name_; /**< node name argument */
diff --git a/mindspore/ccsrc/cxx_api/model/model.cc b/mindspore/ccsrc/cxx_api/model/model.cc
index c725555b5a2..a4a84ceabe5 100644
--- a/mindspore/ccsrc/cxx_api/model/model.cc
+++ b/mindspore/ccsrc/cxx_api/model/model.cc
@@ -65,6 +65,11 @@ Status Model::Build(GraphCell graph_cell, const std::shared_ptr<Context> &model_
   return impl_->Build();
 }
 
+Status Model::Build(const void *model_data, size_t data_size, ModelType model_type,
+                    const std::shared_ptr<Context> &model_context, const Key &dec_key, const std::string &dec_mode) {
+  MS_LOG(ERROR) << "Unsupported Feature.";
+  return kMCFailed;
+}
 Status Model::Resize(const std::vector<MSTensor> &inputs, const std::vector<std::vector<int64_t>> &dims) {
   if (impl_ == nullptr) {
     MS_LOG(ERROR) << "Failed because this model has not been built.";
diff --git a/mindspore/ccsrc/runtime/framework/graph_scheduler.cc b/mindspore/ccsrc/runtime/framework/graph_scheduler.cc
index 1f36c0f91fa..5ace6f3d730 100644
--- a/mindspore/ccsrc/runtime/framework/graph_scheduler.cc
+++ b/mindspore/ccsrc/runtime/framework/graph_scheduler.cc
@@ -448,7 +448,7 @@ void GraphScheduler::Initialize() {
   size_t actor_thread_num = 0;
   size_t OMP_thread_num = 0;
   ComputeThreadNums(&actor_thread_num, &OMP_thread_num);
-  thread_pool_ = ActorThreadPool::CreateThreadPool(actor_thread_num, kThreadSpin);
+  thread_pool_ = ActorThreadPool::CreateThreadPool(actor_thread_num);
   MS_EXCEPTION_IF_NULL(thread_pool_);
   std::string OMP_env = std::to_string(OMP_thread_num);
   common::SetEnv("OMP_NUM_THREADS", OMP_env.c_str(), 0);
diff --git a/mindspore/core/mindrt/src/thread/actor_threadpool.cc b/mindspore/core/mindrt/src/thread/actor_threadpool.cc
index 8c08d481278..aa8924b87c8 100644
--- a/mindspore/core/mindrt/src/thread/actor_threadpool.cc
+++ b/mindspore/core/mindrt/src/thread/actor_threadpool.cc
@@ -18,14 +18,10 @@
 #include "thread/core_affinity.h"
 
 namespace mindspore {
-void ActorWorker::CreateThread(ActorThreadPool *pool, ThreadPolicy policy) {
+void ActorWorker::CreateThread(ActorThreadPool *pool) {
   THREAD_RETURN_IF_NULL(pool);
   pool_ = pool;
-  if (policy == kThreadSpin) {
-    thread_ = std::thread(&ActorWorker::RunWithSpin, this);
-  } else if (policy == kThreadWait) {
-    thread_ = std::thread(&ActorWorker::RunWithWait, this);
-  }
+  thread_ = std::thread(&ActorWorker::RunWithSpin, this);
 }
 
 void ActorWorker::RunWithSpin() {
@@ -47,21 +43,6 @@ void ActorWorker::RunWithSpin() {
   }
 }
 
-void ActorWorker::RunWithWait() {
-#ifndef __APPLE__
-  static std::atomic_int index = {0};
-  pthread_setname_np(pthread_self(), ("ActorThread_" + std::to_string(index++)).c_str());
-#endif
-  while (alive_) {
-    // only run PoolQueue ActorTask
-    bool success = RunQueueActorTask();
-    if (!success) {
-      // wait until enqueue ActorTask
-      pool_->WaitUntilNotify();
-    }
-  }
-}
-
 bool ActorWorker::RunQueueActorTask() {
   THREAD_ERROR_IF_NULL(pool_);
   auto actor = pool_->PopActorFromQueue();
@@ -96,8 +77,6 @@ ActorThreadPool::~ActorThreadPool() {
       std::this_thread::yield();
     }
   } while (!terminate);
-  exit_ = true;
-  actor_cond_.notify_all();
   for (auto &worker : workers_) {
     delete worker;
     worker = nullptr;
@@ -105,11 +84,6 @@ ActorThreadPool::~ActorThreadPool() {
   workers_.clear();
 }
 
-void ActorThreadPool::WaitUntilNotify() {
-  std::unique_lock<std::mutex> _l(actor_mutex_);
-  actor_cond_.wait(_l, [this] { return !actor_queue_.empty() || exit_; });
-}
-
 ActorReference ActorThreadPool::PopActorFromQueue() {
   std::lock_guard<std::mutex> _l(actor_mutex_);
   if (actor_queue_.empty()) {
@@ -125,7 +99,6 @@ void ActorThreadPool::PushActorToQueue(const ActorReference &actor) {
     std::lock_guard<std::mutex> _l(actor_mutex_);
     actor_queue_.push(actor);
   }
-  actor_cond_.notify_one();
   THREAD_INFO("actor[%s] enqueue success", actor->GetAID().Name().c_str());
   // active one idle actor thread if exist
   for (size_t i = 0; i < actor_thread_num_; ++i) {
@@ -136,7 +109,7 @@ void ActorThreadPool::PushActorToQueue(const ActorReference &actor) {
   }
 }
 
-int ActorThreadPool::CreateThreads(size_t actor_thread_num, size_t all_thread_num, ThreadPolicy policy) {
+int ActorThreadPool::CreateThreads(size_t actor_thread_num, size_t all_thread_num) {
   size_t core_num = std::thread::hardware_concurrency();
   THREAD_INFO("ThreadInfo, Actor: [%zu], All: [%zu], CoreNum: [%zu]", actor_thread_num, all_thread_num, core_num);
   actor_thread_num_ = actor_thread_num < core_num ? actor_thread_num : core_num;
@@ -148,7 +121,7 @@ int ActorThreadPool::CreateThreads(size_t actor_thread_num, size_t all_thread_nu
     std::lock_guard<std::mutex> _l(pool_mutex_);
     auto worker = new (std::nothrow) ActorWorker();
     THREAD_ERROR_IF_NULL(worker);
-    worker->CreateThread(this, policy);
+    worker->CreateThread(this);
     workers_.push_back(worker);
     THREAD_INFO("create actor thread[%zu]", i);
   }
@@ -159,13 +132,12 @@ int ActorThreadPool::CreateThreads(size_t actor_thread_num, size_t all_thread_nu
   return THREAD_OK;
 }
 
-ActorThreadPool *ActorThreadPool::CreateThreadPool(size_t actor_thread_num, size_t all_thread_num,
-                                                   ThreadPolicy policy) {
+ActorThreadPool *ActorThreadPool::CreateThreadPool(size_t actor_thread_num, size_t all_thread_num) {
   ActorThreadPool *pool = new (std::nothrow) ActorThreadPool();
   if (pool == nullptr) {
     return nullptr;
   }
-  int ret = pool->CreateThreads(actor_thread_num, all_thread_num, policy);
+  int ret = pool->CreateThreads(actor_thread_num, all_thread_num);
   if (ret != THREAD_OK) {
     delete pool;
     return nullptr;
@@ -180,12 +152,12 @@ ActorThreadPool *ActorThreadPool::CreateThreadPool(size_t actor_thread_num, size
   return pool;
 }
 
-ActorThreadPool *ActorThreadPool::CreateThreadPool(size_t thread_num, ThreadPolicy policy) {
+ActorThreadPool *ActorThreadPool::CreateThreadPool(size_t thread_num) {
   ActorThreadPool *pool = new (std::nothrow) ActorThreadPool();
   if (pool == nullptr) {
     return nullptr;
   }
-  int ret = pool->CreateThreads(thread_num, thread_num, policy);
+  int ret = pool->CreateThreads(thread_num, thread_num);
   if (ret != THREAD_OK) {
     delete pool;
     return nullptr;
diff --git a/mindspore/core/mindrt/src/thread/actor_threadpool.h b/mindspore/core/mindrt/src/thread/actor_threadpool.h
index 0b924818120..3bbe20c8943 100644
--- a/mindspore/core/mindrt/src/thread/actor_threadpool.h
+++ b/mindspore/core/mindrt/src/thread/actor_threadpool.h
@@ -26,20 +26,15 @@
 #include "thread/hqueue.h"
 
 namespace mindspore {
-enum ThreadPolicy {
-  kThreadSpin = 0,  // thread run in spin
-  kThreadWait = 1   // synchronous and wait
-};
 
 class ActorThreadPool;
 
 class ActorWorker : public Worker {
  public:
-  void CreateThread(ActorThreadPool *pool, ThreadPolicy policy);
+  void CreateThread(ActorThreadPool *pool);
   bool Active();
 
  private:
-  void RunWithWait();
   void RunWithSpin();
   bool RunQueueActorTask();
 
@@ -49,24 +44,22 @@ class ActorWorker : public Worker {
 class ActorThreadPool : public ThreadPool {
  public:
   // create ThreadPool that contains actor thread and kernel thread
-  static ActorThreadPool *CreateThreadPool(size_t actor_thread_num, size_t all_thread_num, ThreadPolicy policy);
+  static ActorThreadPool *CreateThreadPool(size_t actor_thread_num, size_t all_thread_num);
   // create ThreadPool that contains only actor thread
-  static ActorThreadPool *CreateThreadPool(size_t thread_num, ThreadPolicy policy);
+  static ActorThreadPool *CreateThreadPool(size_t thread_num);
   ~ActorThreadPool() override;
 
   void PushActorToQueue(const ActorReference &actor);
   ActorReference PopActorFromQueue();
-  void WaitUntilNotify();
 
  private:
   ActorThreadPool() {}
-  int CreateThreads(size_t actor_thread_num, size_t all_thread_num, ThreadPolicy policy);
+  int CreateThreads(size_t actor_thread_num, size_t all_thread_num);
 
   size_t actor_thread_num_{0};
 
-  bool exit_{false};
   std::mutex actor_mutex_;
-  std::condition_variable actor_cond_;
+  // std::condition_variable actor_cond_;
   std::queue<ActorReference> actor_queue_;
 };
 }  // namespace mindspore
diff --git a/mindspore/lite/src/cxx_api/model/model.cc b/mindspore/lite/src/cxx_api/model/model.cc
index 9946802e9d9..0b4eca777ce 100644
--- a/mindspore/lite/src/cxx_api/model/model.cc
+++ b/mindspore/lite/src/cxx_api/model/model.cc
@@ -22,6 +22,19 @@
 #include "src/common/log_adapter.h"
 
 namespace mindspore {
+Status Model::Build(const void *model_data, size_t data_size, ModelType model_type,
+                    const std::shared_ptr<Context> &model_context, const Key &dec_key, const std::string &dec_mode) {
+  impl_ = std::shared_ptr<ModelImpl>(new (std::nothrow) ModelImpl());
+  if (impl_ == nullptr) {
+    MS_LOG(ERROR) << "Model implement is null.";
+    return kLiteNullptr;
+  }
+  Status ret = impl_->Build(model_data, data_size, model_type, model_context);
+  if (ret != kSuccess) {
+    return ret;
+  }
+  return kSuccess;
+}
 Status Model::Build(GraphCell graph, const std::shared_ptr<Context> &model_context) {
   if (impl_ != nullptr) {
     MS_LOG(DEBUG) << "Model has been already built.";
diff --git a/mindspore/lite/src/cxx_api/model/model_impl.cc b/mindspore/lite/src/cxx_api/model/model_impl.cc
index 845a52539a4..bee5b6d90d2 100644
--- a/mindspore/lite/src/cxx_api/model/model_impl.cc
+++ b/mindspore/lite/src/cxx_api/model/model_impl.cc
@@ -45,8 +45,8 @@ lite::CpuBindMode ModelImpl::GetCpuBindMode() {
   }
 }
 
-Status ModelImpl::ConverterContext(lite::Context *model_context) {
-  auto device_list = context_->MutableDeviceInfo();
+Status ModelImpl::ConverterContext(const std::shared_ptr<Context> &context, lite::Context *model_context) {
+  auto device_list = context->MutableDeviceInfo();
   if (device_list.size() == 0) {
     MS_LOG(ERROR) << "Invalid device list.";
     return kLiteInputParamInvalid;
@@ -56,9 +56,9 @@ Status ModelImpl::ConverterContext(lite::Context *model_context) {
     return kLiteInputParamInvalid;
   }
 
-  model_context->thread_num_ = context_->GetThreadNum();
-  model_context->enable_parallel_ = context_->GetEnableParallel();
-  model_context->affinity_core_list_ = context_->GetThreadAffinityCoreList();
+  model_context->thread_num_ = context->GetThreadNum();
+  model_context->enable_parallel_ = context->GetEnableParallel();
+  model_context->affinity_core_list_ = context->GetThreadAffinityCoreList();
   model_context->device_list_.clear();
   if (device_list[0]->GetDeviceType() != kCPU) {
     MS_LOG(ERROR) << "CPU context must be enabled and in the first place of device list.";
@@ -101,6 +101,26 @@ Status ModelImpl::ConverterContext(lite::Context *model_context) {
   return kSuccess;
 }
 
+Status ModelImpl::Build(const void *model_data, size_t data_size, ModelType model_type,
+                        const std::shared_ptr<Context> &ms_context) {
+  lite::Context lite_context;
+  auto status = ConverterContext(ms_context, &lite_context);
+  if (status != kSuccess) {
+    return status;
+  }
+
+  auto session = std::shared_ptr<session::LiteSession>(
+    session::LiteSession::CreateSession(static_cast<const char *>(model_data), data_size, &lite_context));
+  if (session == nullptr) {
+    MS_LOG(ERROR) << "Allocate session failed.";
+    return kLiteNullptr;
+  }
+
+  session_.swap(session);
+  MS_LOG(DEBUG) << "Build model success.";
+  return kSuccess;
+}
+
 Status ModelImpl::Build() {
   MS_LOG(DEBUG) << "Start build model.";
   auto model = graph_->graph_data_->lite_model();
@@ -117,7 +137,7 @@ Status ModelImpl::Build() {
     return kLiteNullptr;
   }
   lite::Context model_context;
-  auto status = ConverterContext(&model_context);
+  auto status = ConverterContext(context_, &model_context);
   if (status != kSuccess) {
     return status;
   }
diff --git a/mindspore/lite/src/cxx_api/model/model_impl.h b/mindspore/lite/src/cxx_api/model/model_impl.h
index 4d282adcc5d..8844ed915fa 100644
--- a/mindspore/lite/src/cxx_api/model/model_impl.h
+++ b/mindspore/lite/src/cxx_api/model/model_impl.h
@@ -36,6 +36,8 @@ class ModelImpl {
   ~ModelImpl() = default;
 
   Status Build();
+  Status Build(const void *model_data, size_t data_size, ModelType model_type,
+               const std::shared_ptr<Context> &model_context);
   Status Resize(const std::vector<MSTensor> &inputs, const std::vector<std::vector<int64_t>> &dims);
 
   Status Predict(const std::vector<MSTensor> &inputs, std::vector<MSTensor> *outputs, const MSKernelCallBack &before,
@@ -58,7 +60,7 @@ class ModelImpl {
   void SetGraph(const std::shared_ptr<Graph> &graph) { graph_ = graph; }
   void SetContext(const std::shared_ptr<Context> &context) { context_ = context; }
   lite::CpuBindMode GetCpuBindMode();
-  Status ConverterContext(lite::Context *model_context);
+  Status ConverterContext(const std::shared_ptr<Context> &context, lite::Context *model_context);
   Status RunGraph(const MSKernelCallBack &before, const MSKernelCallBack &after);
 };
 }  // namespace mindspore
diff --git a/mindspore/lite/src/inner_context.cc b/mindspore/lite/src/inner_context.cc
index c9efcfba5c7..f959525a8c5 100644
--- a/mindspore/lite/src/inner_context.cc
+++ b/mindspore/lite/src/inner_context.cc
@@ -67,7 +67,7 @@ int InnerContext::Init() {
   }
   if (this->thread_pool_ == nullptr && this->IsCpuEnabled()) {
     int actor_parallel_thread = this->enable_parallel_ ? 2 : 1;
-    thread_pool_ = ActorThreadPool::CreateThreadPool(actor_parallel_thread, this->thread_num_, kThreadSpin);
+    thread_pool_ = ActorThreadPool::CreateThreadPool(actor_parallel_thread, this->thread_num_);
     if (thread_pool_ == nullptr) {
       MS_LOG(ERROR) << "Create ThreadPool failed";
       return RET_NULL_PTR;
diff --git a/mindspore/lite/src/lite_session.cc b/mindspore/lite/src/lite_session.cc
index 21c8a2bb5fd..5b94908451c 100644
--- a/mindspore/lite/src/lite_session.cc
+++ b/mindspore/lite/src/lite_session.cc
@@ -455,15 +455,6 @@ bool LiteSession::IfUseMindrtExecutor() {
   use_mindrt_run = false;
 #endif
 
-  for (auto kernel : kernels_) {
-    if (kernel->desc().delegate != nullptr) {
-      continue;
-    }
-    auto sub_graph = reinterpret_cast<kernel::SubGraphKernel *>(kernel);
-    if (sub_graph->nodes()[0]->type() == schema::PrimitiveType_Merge) {
-      use_mindrt_run = false; /* control-flow model */
-    }
-  }
   return use_mindrt_run;
 }
 
diff --git a/mindspore/lite/src/runtime/parallel_executor.cc b/mindspore/lite/src/runtime/parallel_executor.cc
deleted file mode 100644
index 9169698b9cc..00000000000
--- a/mindspore/lite/src/runtime/parallel_executor.cc
+++ /dev/null
@@ -1,99 +0,0 @@
-/**
- * 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 <utility>
-#include "src/runtime/parallel_executor.h"
-#include "src/lite_kernel_util.h"
-
-namespace mindspore::lite {
-ParallelExecutor::~ParallelExecutor() { delete thread_pool_; }
-int ParallelExecutor::Prepare(const std::vector<mindspore::kernel::LiteKernel *> &kernels,
-                              const std::vector<Tensor *> &inputs, const std::vector<Tensor *> &outputs,
-                              const lite::InnerContext *ctx) {
-  thread_pool_ = ActorThreadPool::CreateThreadPool(1, max_thread_num_, kThreadSpin);
-  if (thread_pool_ == nullptr) {
-    MS_LOG(ERROR) << "Memory error: fail to new ThreadPool";
-    return RET_ERROR;
-  }
-  return RET_OK;
-}
-
-static int RunKernel(void *data, int index, float lhs_scale, float rhs_scale) {
-  auto *executor = reinterpret_cast<ParallelExecutor *>(data);
-  auto kernel = executor->GetReadyKernel(index);
-  auto ret = kernel->Execute();
-  executor->SetResult(index, ret);
-  if (ret != RET_OK) {
-    MS_LOG(ERROR) << "run kernel failed, name: " << kernel->name();
-    return 0;
-  }
-  return 0;
-}
-
-int ParallelExecutor::Run(const std::vector<Tensor *> &in_tensors, const std::vector<Tensor *> &out_tensors,
-                          const std::vector<kernel::LiteKernel *> &kernels, mindspore::Allocator *allocator,
-                          const KernelCallBack &before, const KernelCallBack &after) {
-  MS_ASSERT(allocator != nullptr);
-  for (auto &inTensor : in_tensors) {
-    if (inTensor == nullptr) {
-      MS_LOG(ERROR) << "Graph input tensor is nullptr";
-      return RET_ERROR;
-    }
-    if (inTensor->format() != mindspore::NHWC) {
-      MS_LOG(ERROR) << "Model input tensor should be NHWC";
-      return RET_ERROR;
-    }
-  }
-  kernel::LiteKernelUtil::InitTensorInitRefCount(kernels);
-
-  for (auto kernel : kernels) {
-    if (kernel->in_kernels().empty()) {
-      readyKernels.emplace_back(kernel);
-      continue;
-    }
-    refCount[kernel] = kernel->in_kernels().size();
-  }
-  std::vector<kernel::LiteKernel *> newReadyKernels;
-  while (!readyKernels.empty()) {
-    results.resize(readyKernels.size(), RET_OK);
-    if (thread_pool_->ParallelLaunch(RunKernel, this, readyKernels.size()) != 0) {
-      MS_LOG(ERROR) << "ParallelLaunch failed ";
-      return RET_ERROR;
-    }
-
-    if (std::find_if(results.begin(), results.end(), [](const int &ret) { return (ret != 0); }) != results.end()) {
-      return RET_ERROR;
-    }
-    newReadyKernels.clear();
-    for (auto completed : readyKernels) {
-      for (auto out : completed->out_kernels()) {
-        auto iter = refCount.find(out);
-        if (iter == refCount.end()) {
-          continue;
-        }
-        (iter->second)--;
-        if (iter->second <= 0) {
-          newReadyKernels.emplace_back(iter->first);
-          refCount.erase(iter);
-        }
-      }
-    }
-    readyKernels.clear();
-    readyKernels = std::move(newReadyKernels);
-  }
-  return RET_OK;
-}
-}  // namespace mindspore::lite
diff --git a/mindspore/lite/src/runtime/parallel_executor.h b/mindspore/lite/src/runtime/parallel_executor.h
deleted file mode 100644
index 36507fa7d9c..00000000000
--- a/mindspore/lite/src/runtime/parallel_executor.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/**
- * 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_SRC_RUNTIME_PARALLEL_EXECUTOR_H_
-#define MINDSPORE_LITE_SRC_RUNTIME_PARALLEL_EXECUTOR_H_
-
-#include <vector>
-#include <thread>
-#include <unordered_map>
-#include "src/runtime/inner_allocator.h"
-#include "src/lite_kernel.h"
-#include "include/lite_session.h"
-#include "src/executor.h"
-#include "thread/actor_threadpool.h"
-
-namespace mindspore::lite {
-class ParallelExecutor : public Executor {
- public:
-  ParallelExecutor() = default;
-  ~ParallelExecutor() override;
-
-  int Prepare(const std::vector<kernel::LiteKernel *> &kernels, const std::vector<Tensor *> &inputs,
-              const std::vector<Tensor *> &outputs, const lite::InnerContext *ctx) override;
-
-  int Run(const std::vector<Tensor *> &in_tensors, const std::vector<Tensor *> &out_tensors,
-          const std::vector<kernel::LiteKernel *> &kernels, mindspore::Allocator *allocator = nullptr,
-          const KernelCallBack &before = nullptr, const KernelCallBack &after = nullptr) override;
-  inline kernel::LiteKernel *GetReadyKernel(const int index) const { return readyKernels.at(index); }
-  inline void SetResult(const int index, const int result) { results.at(index) = result; }
-
- private:
-  std::unordered_map<kernel::LiteKernel *, size_t> refCount;
-  std::vector<kernel::LiteKernel *> readyKernels;
-  std::vector<int> results;
-  ActorThreadPool *thread_pool_ = nullptr;
-  int max_thread_num_ = std::thread::hardware_concurrency();
-};
-
-}  // namespace mindspore::lite
-#endif  // MINDSPORE_LITE_SRC_RUNTIME_PARALLEL_EXECUTOR_H_
diff --git a/mindspore/lite/test/CMakeLists.txt b/mindspore/lite/test/CMakeLists.txt
index 2919518288f..5c800866add 100644
--- a/mindspore/lite/test/CMakeLists.txt
+++ b/mindspore/lite/test/CMakeLists.txt
@@ -76,7 +76,6 @@ set(TEST_LITE_SRC
         ${OPS_SRC}
         ${KERNEL_OP_SRC}
         ${LITE_DIR}/src/runtime/inner_allocator.cc
-        ${LITE_DIR}/src/runtime/parallel_executor.cc
         ${LITE_DIR}/src/runtime/infer_manager.cc
         ${LITE_DIR}/src/tensor.cc
         ${LITE_DIR}/src/ms_tensor.cc
diff --git a/mindspore/lite/test/st/sub_graph_test.cc b/mindspore/lite/test/st/sub_graph_test.cc
index 05f23512e5d..54d83ed7d2b 100644
--- a/mindspore/lite/test/st/sub_graph_test.cc
+++ b/mindspore/lite/test/st/sub_graph_test.cc
@@ -25,7 +25,6 @@
 #include "include/errorcode.h"
 #include "src/common/log_adapter.h"
 #include "src/lite_session.h"
-#include "src/runtime/parallel_executor.h"
 #include "tools/common/storage.h"
 #include "include/version.h"
 
diff --git a/mindspore/lite/test/ut/src/infer_test.cc b/mindspore/lite/test/ut/src/infer_test.cc
index 43aa9d2c7b3..0419f91cf30 100644
--- a/mindspore/lite/test/ut/src/infer_test.cc
+++ b/mindspore/lite/test/ut/src/infer_test.cc
@@ -24,7 +24,6 @@
 #include "include/errorcode.h"
 #include "src/common/log_adapter.h"
 #include "src/lite_session.h"
-#include "src/runtime/parallel_executor.h"
 
 namespace mindspore {
 class InferTest : public mindspore::CommonTest {
@@ -233,98 +232,6 @@ TEST_F(InferTest, TestAddNode) {
   MS_LOG(INFO) << "Passed";
 }
 
-class SessionWithParallelExecutor : public lite::LiteSession {
- public:
-  int Init(lite::InnerContext *context) {
-    lite::LiteSession::Init(context);
-    delete this->executor_;
-    this->executor_ = new mindspore::lite::ParallelExecutor();
-    return 0;
-  }
-};
-
-TEST_F(InferTest, TestParallelExecutor) {
-  auto meta_graph = std::make_shared<schema::MetaGraphT>();
-  meta_graph->name = "graph";
-
-  auto node = std::make_unique<schema::CNodeT>();
-  node->inputIndex = {0, 1};
-  node->outputIndex = {2};
-  node->primitive = std::make_unique<schema::PrimitiveT>();
-  node->primitive->value.type = schema::PrimitiveType_AddFusion;
-  auto primitive = new schema::AddFusionT;
-  node->primitive->value.value = primitive;
-  node->name = "Add";
-  meta_graph->nodes.emplace_back(std::move(node));
-  meta_graph->inputIndex = {0, 1};
-  meta_graph->outputIndex = {2};
-
-  auto input0 = std::make_unique<schema::TensorT>();
-  input0->nodeType = lite::NodeType_ValueNode;
-  input0->format = schema::Format_NHWC;
-  input0->dataType = TypeId::kNumberTypeFloat32;
-  input0->dims = {1, 28, 28, 3};
-  input0->offset = -1;
-  meta_graph->allTensors.emplace_back(std::move(input0));
-
-  auto weight = std::make_unique<schema::TensorT>();
-  weight->nodeType = lite::NodeType_ValueNode;
-  weight->format = schema::Format_NHWC;
-  weight->dataType = TypeId::kNumberTypeFloat32;
-  weight->dims = {1, 28, 28, 3};
-
-  weight->offset = -1;
-  meta_graph->allTensors.emplace_back(std::move(weight));
-
-  auto output = std::make_unique<schema::TensorT>();
-  output->nodeType = lite::NodeType_Parameter;
-  output->format = schema::Format_NHWC;
-  output->dataType = TypeId::kNumberTypeFloat32;
-  output->offset = -1;
-  meta_graph->allTensors.emplace_back(std::move(output));
-
-  flatbuffers::FlatBufferBuilder builder(1024);
-  auto offset = schema::MetaGraph::Pack(builder, meta_graph.get());
-  builder.Finish(offset);
-  size_t size = builder.GetSize();
-  const char *content = reinterpret_cast<char *>(builder.GetBufferPointer());
-
-  auto model = lite::Model::Import(content, size);
-  ASSERT_NE(nullptr, model);
-  meta_graph.reset();
-  content = nullptr;
-  auto context = new lite::InnerContext;
-  auto &device_list = context->device_list_;
-  lite::DeviceContext device_ctx = {lite::DT_CPU, {false, lite::NO_BIND}};
-  device_list.push_back(device_ctx);
-  context->thread_num_ = 4;
-  ASSERT_EQ(lite::RET_OK, context->Init());
-  auto session = new SessionWithParallelExecutor();
-  session->Init(context);
-  ASSERT_NE(nullptr, session);
-  auto ret = session->CompileGraph(model);
-  ASSERT_EQ(lite::RET_OK, ret);
-  auto inputs = session->GetInputs();
-  ASSERT_EQ(inputs.size(), 2);
-  auto inTensor = inputs.front();
-  ASSERT_NE(nullptr, inTensor);
-  (void)inTensor->MutableData();
-  auto inTensor1 = inputs.back();
-  ASSERT_NE(nullptr, inTensor1);
-  (void)inTensor1->MutableData();
-  ret = session->RunGraph();
-  ASSERT_EQ(lite::RET_OK, ret);
-  auto outputs = session->GetOutputs();
-  ASSERT_EQ(outputs.size(), 1);
-  auto outTensor = outputs.begin()->second;
-  ASSERT_NE(nullptr, outTensor);
-  ASSERT_EQ(28 * 28 * 3, outTensor->ElementsNum());
-  ASSERT_EQ(TypeId::kNumberTypeFloat32, outTensor->data_type());
-  auto *outData = reinterpret_cast<float *>(outTensor->MutableData());
-  ASSERT_NE(nullptr, outData);
-  MS_LOG(INFO) << "Passed";
-}
-
 TEST_F(InferTest, TestModel) {
   auto buf = new char *[1];
   size_t model_size;
diff --git a/mindspore/lite/test/ut/src/lite_mindrt_test.cc b/mindspore/lite/test/ut/src/lite_mindrt_test.cc
index 5a118570324..34acf1f523a 100644
--- a/mindspore/lite/test/ut/src/lite_mindrt_test.cc
+++ b/mindspore/lite/test/ut/src/lite_mindrt_test.cc
@@ -110,7 +110,7 @@ class TestActor : public ActorBase {
 
 TEST_F(LiteMindRtTest, ActorThreadPoolTest) {
   Initialize("", "", "", "", 4);
-  auto pool = ActorThreadPool::CreateThreadPool(4, kThreadSpin);
+  auto pool = ActorThreadPool::CreateThreadPool(4);
   AID t1 = Spawn(ActorReference(new TestActor("t1", pool, 1)));
   AID t2 = Spawn(ActorReference(new TestActor("t2", pool, 2)));
   AID t3 = Spawn(ActorReference(new TestActor("t3", pool, 3)));
diff --git a/mindspore/lite/test/ut/src/registry/registry_custom_op_test.cc b/mindspore/lite/test/ut/src/registry/registry_custom_op_test.cc
index 04701a7e938..d5829c008dd 100644
--- a/mindspore/lite/test/ut/src/registry/registry_custom_op_test.cc
+++ b/mindspore/lite/test/ut/src/registry/registry_custom_op_test.cc
@@ -24,7 +24,6 @@
 #include "include/errorcode.h"
 #include "src/common/log_adapter.h"
 #include "src/lite_session.h"
-#include "src/runtime/parallel_executor.h"
 #include "include/registry/kernel_interface.h"
 #include "include/registry/register_kernel.h"
 
diff --git a/mindspore/lite/test/ut/src/registry/registry_test.cc b/mindspore/lite/test/ut/src/registry/registry_test.cc
index 6946de763dd..0b5a58c476f 100644
--- a/mindspore/lite/test/ut/src/registry/registry_test.cc
+++ b/mindspore/lite/test/ut/src/registry/registry_test.cc
@@ -23,7 +23,6 @@
 #include "include/errorcode.h"
 #include "src/common/log_adapter.h"
 #include "src/lite_session.h"
-#include "src/runtime/parallel_executor.h"
 #include "src/runtime/inner_allocator.h"
 #include "include/registry/kernel_interface.h"
 #include "include/registry/register_kernel.h"