diff --git a/src/io/paddle_mobile_wrap.cpp b/src/io/paddle_mobile_wrap.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..d84d9dd4cd610a79ba76ff7845472f06001f9cf2
--- /dev/null
+++ b/src/io/paddle_mobile_wrap.cpp
@@ -0,0 +1,216 @@
+/* Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+
+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 "io/paddle_mobile_wrap.h"
+
+#include "io/api_paddle_mobile.h"
+#include "io/paddle_mobile.h"
+
+namespace paddle_mobile {
+namespace wrap {
+
+#ifndef PADDLE_MOBILE_FPGA
+
+// ddim class
+int DDim::size() { return dims.size(); }
+
+int64_t &DDim::operator[](int idx) {
+  if (0 <= idx && idx < dims.size()) {
+    return dims[idx];
+  }
+  int64_t non_exist = 0;
+  return non_exist;
+}
+
+int64_t DDim::operator[](int idx) const {
+  if (0 <= idx && idx < dims.size()) {
+    return dims[idx];
+  }
+  return 0;
+}
+
+DDim make_ddim(const std::vector<int64_t> &dims) {
+  DDim ddim;
+  for (auto dim : dims) {
+    ddim.dims.push_back(dim);
+  }
+  return ddim;
+}
+
+// tensor class
+Tensor::Tensor(float *data, DDim ddim) {
+  this->data_ = data;
+  this->ddim_ = ddim;
+}
+
+template <typename T>
+float *Tensor::data() const {
+  return this->data_;
+}
+
+DDim Tensor::dims() const { return this->ddim_; }
+
+// net class
+template <typename Device>
+void Net<Device>::SetThreadNum(int threads) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    engine->SetThreadNum(threads);
+  }
+}
+
+template <typename Device>
+PMStatus Net<Device>::Load(const std::string &dirname, const bool optimize,
+                           const bool quantification, const int batch_size,
+                           const bool lod_mode) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    paddle_mobile::PMStatus status =
+        engine->Load(dirname, false, false, 1, true);
+    return status == paddle_mobile::PMSuccess ? PMSuccess : PMUnKownError;
+  }
+  return PMUnKownError;
+}
+
+template <typename Device>
+PMStatus Net<Device>::Load(const std::string &model_path,
+                           const std::string &para_path, const bool optimize,
+                           const bool quantification, const int batch_size,
+                           const bool lod_mode) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    paddle_mobile::PMStatus status =
+        engine->Load(model_path, para_path, false, false, 1, true);
+    return status == paddle_mobile::PMSuccess ? PMSuccess : PMUnKownError;
+  }
+  return PMUnKownError;
+}
+
+template <typename Device>
+bool Net<Device>::LoadCombinedMemory(size_t model_len, const uint8_t *model_buf,
+                                     size_t combined_params_len,
+                                     uint8_t *combined_params_buf,
+                                     bool optimize, bool quantification,
+                                     int batch_size, bool lod_mode) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    bool status =
+        engine->LoadCombinedMemory(model_len, model_buf, combined_params_len,
+                                   combined_params_buf, false, false, 1, true);
+    return status;
+  }
+  return false;
+}
+
+template <typename Device>
+PMStatus Net<Device>::Predict(const Tensor &input) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    auto input_data = input.data<float>();
+    auto input_dims = input.dims();
+    std::vector<int64_t> input_dims_as_vector = input_dims.dims;
+    paddle_mobile::framework::Tensor input_inner(
+        input_data, paddle_mobile::framework::make_ddim(input_dims_as_vector));
+    paddle_mobile::PMStatus status = engine->Predict(input_inner);
+    return status == paddle_mobile::PMSuccess ? PMSuccess : PMUnKownError;
+  }
+  return PMUnKownError;
+}
+
+template <typename Device>
+std::vector<float> Net<Device>::Predict(const std::vector<float> &input,
+                                        const std::vector<int64_t> &dims) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    auto result = engine->Predict(input, dims);
+    return result;
+  }
+  return std::vector<float>();
+}
+
+template <typename Device>
+PMStatus Net<Device>::Predict() {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    paddle_mobile::PMStatus status = engine->Predict();
+    return status == paddle_mobile::PMSuccess ? PMSuccess : PMUnKownError;
+  }
+  return PMUnKownError;
+}
+
+template <typename Device>
+void Net<Device>::Feed(const std::string &var_name, const Tensor &input) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    auto input_data = input.data<float>();
+    auto input_dims = input.dims();
+    std::vector<int64_t> input_dims_as_vector = input_dims.dims;
+    paddle_mobile::framework::Tensor input_inner(
+        input_data, paddle_mobile::framework::make_ddim(input_dims_as_vector));
+    engine->Feed(var_name, input_inner);
+  }
+}
+
+template <typename Device>
+std::shared_ptr<Tensor> Net<Device>::Fetch(const std::string &var_name) {
+  auto engine =
+      (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+  if (engine != nullptr) {
+    auto output_inner = engine->Fetch(var_name);
+    auto ddim_inner = output_inner->dims();
+    std::vector<int64_t> ddim_as_vector;
+    for (int i = 0; i < ddim_inner.size(); i++) {
+      ddim_as_vector.push_back(ddim_inner[i]);
+    }
+    auto ddim = make_ddim(ddim_as_vector);
+    auto output_data = output_inner->data<float>();
+    std::shared_ptr<Tensor> ptr(new Tensor(output_data, ddim));
+    return ptr;
+  }
+  return nullptr;
+}
+
+template <typename Device>
+Net<Device>::Net() {
+  if (this->engine_ == nullptr) {
+    PaddleMobileConfigInternal config;
+    this->engine_ = new paddle_mobile::PaddleMobile<paddle_mobile::CPU>(config);
+  }
+}
+
+template <typename Device>
+Net<Device>::~Net() {
+  if (this->engine_ != nullptr) {
+    auto engine =
+        (paddle_mobile::PaddleMobile<paddle_mobile::CPU> *)this->engine_;
+    delete engine;
+    this->engine_ = nullptr;
+  }
+}
+
+template class Net<CPU>;
+template float *Tensor::data<float>() const;
+
+#endif
+
+}  // namespace wrap
+}  // namespace paddle_mobile
diff --git a/src/io/paddle_mobile_wrap.h b/src/io/paddle_mobile_wrap.h
new file mode 100644
index 0000000000000000000000000000000000000000..7a827bd13b26b37c8a58375b48bbf9aee2fed76b
--- /dev/null
+++ b/src/io/paddle_mobile_wrap.h
@@ -0,0 +1,113 @@
+/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+
+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. */
+
+#pragma once
+
+#include <cstdint>
+#include <map>
+#include <string>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+
+namespace paddle_mobile {
+namespace wrap {
+
+#ifndef PADDLE_MOBILE_FPGA
+
+// device type
+enum DeviceTypeEnum {
+  kINVALID = -1,
+  kCPU = 0,
+  kFPGA = 1,
+  kGPU_MALI = 2,
+  kGPU_CL = 3
+};
+
+template <DeviceTypeEnum T>
+struct DeviceType {};
+
+typedef DeviceType<kCPU> CPU;
+typedef DeviceType<kFPGA> FPGA;
+typedef DeviceType<kGPU_MALI> GPU_MALI;
+typedef DeviceType<kGPU_CL> GPU_CL;
+
+// ddim class
+class DDim {
+ public:
+  int size();
+  int64_t &operator[](int idx);
+  int64_t operator[](int idx) const;
+
+  std::vector<int64_t> dims;
+};
+DDim make_ddim(const std::vector<int64_t> &dims);
+
+// tensor class
+class Tensor {
+ public:
+  Tensor(float *data, DDim ddim);
+
+  template <typename T>
+  float *data() const;
+  DDim dims() const;
+
+  float *data_;
+  DDim ddim_;
+};
+
+// pm status
+enum PMStatus {
+  PMSuccess = 0xFF,        /*!< No errors */
+  PMNotInitialized = 0x01, /*!< Data not initialized. */
+  PMInvalidValue = 0x02,   /*!< Incorrect variable value. */
+  PMMemAllocFailed = 0x03, /*!< Memory allocation error. */
+  PMUnKownError = 0x04,    /*!< Unknown error. */
+  PMOutOfAuthority = 0x05, /*!< Try to modified data not your own*/
+  PMOutOfMem = 0x06,       /*!< OOM error*/
+  PMUnImplError = 0x07,    /*!< Unimplement error. */
+  PMWrongDevice = 0x08     /*!< un-correct device. */
+};
+
+// net class
+template <typename Device>
+class Net {
+ public:
+  Net();
+  ~Net();
+  void SetThreadNum(int thread_num);
+  PMStatus Load(const std::string &dirname, const bool optimize = false,
+                const bool quantification = false, const int batch_size = 1,
+                const bool lod_mode = false);
+  PMStatus Load(const std::string &model_path, const std::string &para_path,
+                const bool optimize = false, const bool quantification = false,
+                const int batch_size = 1, const bool lod_mode = false);
+  bool LoadCombinedMemory(size_t model_len, const uint8_t *model_buf,
+                          size_t combined_params_len,
+                          uint8_t *combined_params_buf, bool optimize = false,
+                          bool quantification = false, int batch_size = 1,
+                          bool lod_mode = false);
+  PMStatus Predict(const Tensor &input);
+  std::vector<float> Predict(const std::vector<float> &input,
+                             const std::vector<int64_t> &dims);
+  PMStatus Predict();
+  void Feed(const std::string &var_name, const Tensor &input);
+  std::shared_ptr<Tensor> Fetch(const std::string &var_name);
+  void *engine_ = nullptr;
+};
+
+#endif
+
+}  // namespace wrap
+}  // namespace paddle_mobile
diff --git a/test/net/test_wrap.cpp b/test/net/test_wrap.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0e507ce9502ad7b043a3dda6d8cfea25141c310a
--- /dev/null
+++ b/test/net/test_wrap.cpp
@@ -0,0 +1,50 @@
+/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+
+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 <iostream>
+#include <sstream>
+#include "../test_helper.h"
+#include "../test_include.h"
+#include "io/paddle_mobile_wrap.h"
+
+int main(int argc, char *argv[]) {
+#ifndef PADDLE_MOBILE_FPGA
+  paddle_mobile::wrap::Net<paddle_mobile::wrap::CPU> *net =
+      new paddle_mobile::wrap::Net<paddle_mobile::wrap::CPU>();
+  net->Load("./checked_model/model", "./checked_model/params", false, false, 1,
+            true);
+  int size = 1 * 3 * 64 * 64;
+  float *data = new float[size];
+  for (int i = 0; i < size; i++) {
+    data[i] = 0.0;
+  }
+  std::vector<int64_t> shape{1, 3, 64, 64};
+  paddle_mobile::wrap::Tensor input(data,
+                                    paddle_mobile::wrap::make_ddim(shape));
+  net->Feed("data", input);
+  net->Predict();
+  auto output = net->Fetch("save_infer_model/scale_0");
+  int output_size = 1;
+  std::cout << "output shape: ";
+  for (int i = 0; i < output->dims().size(); i++) {
+    std::cout << output->dims()[i] << " ";
+    output_size *= output->dims()[i];
+  }
+  std::cout << std::endl;
+  std::cout << "output data: ";
+  for (int i = 0; i < output_size; i++) {
+    std::cout << output->data<float>()[i] << std::endl;
+  }
+#endif
+}