diff --git a/paddle/fluid/framework/paddle2cinn/CMakeLists.txt b/paddle/fluid/framework/paddle2cinn/CMakeLists.txt
index 4a6533321772726ae2c3975083cd06f36dbd6256..d1c17c7a7095365b83b5086beb467a65c228c5f3 100644
--- a/paddle/fluid/framework/paddle2cinn/CMakeLists.txt
+++ b/paddle/fluid/framework/paddle2cinn/CMakeLists.txt
@@ -3,6 +3,11 @@ cc_library(cinn_compiled_object SRCS cinn_compiled_object.cc DEPS feed_fetch_met
 cc_library(cinn_runner SRCS cinn_runner.cc DEPS cinn_cache_key cinn_compiled_object feed_fetch_method graph lod_tensor scope)
 cc_library(build_cinn_pass SRCS build_cinn_pass.cc DEPS pass subgraph_detector)
 
+if (WITH_CINN)
+  cc_library(transform_desc SRCS transform_desc.cc DEPS proto_desc cinn)
+  cc_test(test_transform_desc SRCS transform_desc_test.cc DEPS transform_desc)
+endif()
+
 cc_test(cinn_cache_key_test SRCS cinn_cache_key_test.cc DEPS cinn_cache_key)
 cc_test(cinn_runner_test SRCS cinn_runner_test.cc DEPS cinn_runner proto_desc)
 cc_test(cinn_compiled_object_test SRCS cinn_compiled_object_test.cc DEPS cinn_compiled_object)
diff --git a/paddle/fluid/framework/paddle2cinn/transform_desc.cc b/paddle/fluid/framework/paddle2cinn/transform_desc.cc
new file mode 100644
index 0000000000000000000000000000000000000000..52b1395c732ace86c682b1502ed404649f132088
--- /dev/null
+++ b/paddle/fluid/framework/paddle2cinn/transform_desc.cc
@@ -0,0 +1,348 @@
+// Copyright (c) 2021 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 "paddle/fluid/framework/paddle2cinn/transform_desc.h"
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "paddle/fluid/platform/enforce.h"
+
+namespace paddle {
+namespace framework {
+namespace paddle2cinn {
+
+using PbVarType = framework::proto::VarType;
+namespace cpp = ::cinn::frontend::paddle::cpp;
+
+::cinn::frontend::paddle::cpp::VarDescAPI::Type TransformVarTypeToCinn(
+    const ::paddle::framework::proto::VarType::Type &type) {
+#define SET_TYPE_CASE_ITEM(type__)                                  \
+  case ::paddle::framework::proto::VarType::type__:                 \
+    return ::cinn::frontend::paddle::cpp::VarDescAPI::Type::type__; \
+    break;
+
+  switch (type) {
+    SET_TYPE_CASE_ITEM(LOD_TENSOR);
+    SET_TYPE_CASE_ITEM(LOD_TENSOR_ARRAY);
+    SET_TYPE_CASE_ITEM(LOD_RANK_TABLE);
+    SET_TYPE_CASE_ITEM(SELECTED_ROWS);
+    SET_TYPE_CASE_ITEM(FEED_MINIBATCH);
+    SET_TYPE_CASE_ITEM(FETCH_LIST);
+    SET_TYPE_CASE_ITEM(STEP_SCOPES);
+    SET_TYPE_CASE_ITEM(PLACE_LIST);
+    SET_TYPE_CASE_ITEM(READER);
+    default:
+      PADDLE_THROW(platform::errors::NotFound("Cannot found var type"));
+  }
+#undef SET_TYPE_CASE_ITEM
+}
+
+::paddle::framework::proto::VarType::Type TransformVarTypeFromCinn(
+    const ::cinn::frontend::paddle::cpp::VarDescAPI::Type &type) {
+#define SET_TYPE_CASE_ITEM(type__)                              \
+  case ::cinn::frontend::paddle::cpp::VarDescAPI::Type::type__: \
+    return ::paddle::framework::proto::VarType::type__;         \
+    break;
+
+  switch (type) {
+    SET_TYPE_CASE_ITEM(LOD_TENSOR);
+    SET_TYPE_CASE_ITEM(LOD_TENSOR_ARRAY);
+    SET_TYPE_CASE_ITEM(LOD_RANK_TABLE);
+    SET_TYPE_CASE_ITEM(SELECTED_ROWS);
+    SET_TYPE_CASE_ITEM(FEED_MINIBATCH);
+    SET_TYPE_CASE_ITEM(FETCH_LIST);
+    SET_TYPE_CASE_ITEM(STEP_SCOPES);
+    SET_TYPE_CASE_ITEM(PLACE_LIST);
+    SET_TYPE_CASE_ITEM(READER);
+    default:
+      PADDLE_THROW(platform::errors::NotFound("Cannot found var type"));
+  }
+#undef SET_TYPE_CASE_ITEM
+}
+
+::cinn::frontend::paddle::cpp::VarDescAPI::Type TransformVarDataTypeToCinn(
+    const ::paddle::framework::proto::VarType::Type &type) {
+#define SET_DATA_TYPE_CASE_ITEM(type__)                             \
+  case ::paddle::framework::proto::VarType::type__:                 \
+    return ::cinn::frontend::paddle::cpp::VarDescAPI::Type::type__; \
+    break;
+
+  switch (type) {
+    SET_DATA_TYPE_CASE_ITEM(BOOL);
+    SET_DATA_TYPE_CASE_ITEM(SIZE_T);
+    SET_DATA_TYPE_CASE_ITEM(UINT8);
+    SET_DATA_TYPE_CASE_ITEM(INT8);
+    SET_DATA_TYPE_CASE_ITEM(INT16);
+    SET_DATA_TYPE_CASE_ITEM(INT32);
+    SET_DATA_TYPE_CASE_ITEM(INT64);
+    SET_DATA_TYPE_CASE_ITEM(FP16);
+    SET_DATA_TYPE_CASE_ITEM(FP32);
+    SET_DATA_TYPE_CASE_ITEM(FP64);
+    default:
+      PADDLE_THROW(platform::errors::NotFound("Cannot found var data type"));
+  }
+#undef SET_DATA_TYPE_CASE_ITEM
+}
+
+::paddle::framework::proto::VarType::Type TransformVarDataTypeFromCpp(
+    const ::cinn::frontend::paddle::cpp::VarDescAPI::Type &type) {
+#define SET_DATA_TYPE_CASE_ITEM(type__)                         \
+  case ::cinn::frontend::paddle::cpp::VarDescAPI::Type::type__: \
+    return ::paddle::framework::proto::VarType::type__;         \
+    break;
+
+  switch (type) {
+    SET_DATA_TYPE_CASE_ITEM(BOOL);
+    SET_DATA_TYPE_CASE_ITEM(SIZE_T);
+    SET_DATA_TYPE_CASE_ITEM(UINT8);
+    SET_DATA_TYPE_CASE_ITEM(INT8);
+    SET_DATA_TYPE_CASE_ITEM(INT16);
+    SET_DATA_TYPE_CASE_ITEM(INT32);
+    SET_DATA_TYPE_CASE_ITEM(INT64);
+    SET_DATA_TYPE_CASE_ITEM(FP16);
+    SET_DATA_TYPE_CASE_ITEM(FP32);
+    SET_DATA_TYPE_CASE_ITEM(FP64);
+    default:
+      PADDLE_THROW(platform::errors::NotFound("Cannot found var data type"));
+  }
+#undef SET_DATA_TYPE_CASE_ITEM
+}
+
+void TransformVarDescToCinn(framework::VarDesc *pb_desc,
+                            cpp::VarDesc *cpp_desc) {
+  cpp_desc->SetName(pb_desc->Name());
+  cpp_desc->SetType(TransformVarTypeToCinn(pb_desc->GetType()));
+  cpp_desc->SetPersistable(pb_desc->Persistable());
+  if (pb_desc->Name() != "feed" && pb_desc->Name() != "fetch") {
+    cpp_desc->SetDataType(TransformVarDataTypeToCinn(pb_desc->GetDataType()));
+    cpp_desc->SetShape(pb_desc->GetShape());
+  }
+}
+
+void TransformVarDescFromCinn(const cpp::VarDesc &cpp_desc,
+                              framework::VarDesc *pb_desc) {
+  pb_desc->Proto()->Clear();
+  pb_desc->SetName(cpp_desc.Name());
+  pb_desc->SetType(TransformVarTypeFromCinn(cpp_desc.GetType()));
+  pb_desc->SetPersistable(cpp_desc.Persistable());
+  if (cpp_desc.Name() != "feed" && cpp_desc.Name() != "fetch") {
+    pb_desc->SetShape(cpp_desc.GetShape());
+    pb_desc->SetDataType(TransformVarDataTypeFromCpp(cpp_desc.GetDataType()));
+  }
+}
+
+/// For OpDesc transform
+void OpInputsToCinn(framework::OpDesc *pb_desc, cpp::OpDesc *cpp_desc) {
+  for (const std::string &param : pb_desc->InputNames()) {
+    cpp_desc->SetInput(param, pb_desc->Input(param));
+  }
+}
+
+void OpInputsFromCinn(const cpp::OpDesc &cpp_desc, framework::OpDesc *pb_desc) {
+  pb_desc->MutableInputs()->clear();
+  for (const std::string &param : cpp_desc.InputArgumentNames()) {
+    pb_desc->SetInput(param, cpp_desc.Input(param));
+  }
+}
+
+void OpOutputsToCinn(framework::OpDesc *pb_desc, cpp::OpDesc *cpp_desc) {
+  for (const std::string &param : pb_desc->OutputNames()) {
+    cpp_desc->SetOutput(param, pb_desc->Output(param));
+  }
+}
+
+void OpOutputsFromCinn(const cpp::OpDesc &cpp_desc,
+                       framework::OpDesc *pb_desc) {
+  pb_desc->MutableOutputs()->clear();
+  for (const std::string &param : cpp_desc.OutputArgumentNames()) {
+    pb_desc->SetOutput(param, cpp_desc.Output(param));
+  }
+}
+
+void OpAttrsToCinn(framework::OpDesc *pb_desc, cpp::OpDesc *cpp_desc) {
+  using AttrType = framework::proto::AttrType;
+  auto set_attr = [&](const std::string &name, AttrType type) {
+    switch (type) {
+#define IMPL_ONE(type__, T)                                        \
+  case AttrType::type__:                                           \
+    cpp_desc->SetAttr<T>(name, pb_desc->GetAttrIfExists<T>(name)); \
+    break;
+      IMPL_ONE(INT, int32_t);
+      IMPL_ONE(FLOAT, float);
+      IMPL_ONE(STRING, std::string);
+      IMPL_ONE(STRINGS, std::vector<std::string>);
+      IMPL_ONE(FLOATS, std::vector<float>);
+      IMPL_ONE(INTS, std::vector<int>);
+      IMPL_ONE(BOOLEAN, bool);
+      IMPL_ONE(LONG, int64_t);
+      IMPL_ONE(LONGS, std::vector<int64_t>);
+      case AttrType::BLOCK: {
+        auto i = pb_desc->GetAttrIfExists<int16_t>(name);
+        cpp_desc->SetAttr<int32_t>(name, i);
+        break;
+      }
+      default:
+        PADDLE_THROW(platform::errors::NotFound(
+            "Unsupported attr type %d found ", static_cast<int>(type)));
+    }
+  };
+#undef IMPL_ONE
+
+  for (const auto &attr_name : pb_desc->AttrNames()) {
+    auto type = pb_desc->GetAttrType(attr_name);
+    set_attr(attr_name, type);
+  }
+}
+
+void OpAttrsFromCinn(const cpp::OpDesc &cpp_desc, framework::OpDesc *pb_desc) {
+  pb_desc->MutableAttrMap()->clear();
+  using AttrType = cpp::OpDescAPI::AttrType;
+  auto set_attr = [&](const std::string &name, AttrType type) {
+    switch (type) {
+#define IMPL_ONE(type__, T)                            \
+  case AttrType::type__:                               \
+    pb_desc->SetAttr(name, cpp_desc.GetAttr<T>(name)); \
+    break;
+      IMPL_ONE(INT, int32_t);
+      IMPL_ONE(FLOAT, float);
+      IMPL_ONE(STRING, std::string);
+      IMPL_ONE(STRINGS, std::vector<std::string>);
+      IMPL_ONE(FLOATS, std::vector<float>);
+      IMPL_ONE(INTS, std::vector<int>);
+      IMPL_ONE(BOOLEAN, bool);
+      IMPL_ONE(LONG, int64_t);
+      IMPL_ONE(LONGS, std::vector<int64_t>);
+      default:
+        PADDLE_THROW(platform::errors::NotFound(
+            "Unsupported attr type %d found ", static_cast<int>(type)));
+    }
+  };
+#undef IMPL_ONE
+
+  for (const auto &attr_name : cpp_desc.AttrNames()) {
+    auto type = cpp_desc.GetAttrType(attr_name);
+    set_attr(attr_name, type);
+  }
+}
+
+void TransformOpDescToCinn(framework::OpDesc *pb_desc, cpp::OpDesc *cpp_desc) {
+  cpp_desc->SetType(pb_desc->Type());
+  OpInputsToCinn(pb_desc, cpp_desc);
+  OpOutputsToCinn(pb_desc, cpp_desc);
+  OpAttrsToCinn(pb_desc, cpp_desc);
+}
+
+void TransformOpDescFromCinn(const cpp::OpDesc &cpp_desc,
+                             framework::OpDesc *pb_desc) {
+  pb_desc->Proto()->Clear();
+  pb_desc->SetType(cpp_desc.Type());
+  OpInputsFromCinn(cpp_desc, pb_desc);
+  OpOutputsFromCinn(cpp_desc, pb_desc);
+  OpAttrsFromCinn(cpp_desc, pb_desc);
+}
+
+/// For BlockDesc transform
+void TransformBlockDescToCinn(framework::BlockDesc *pb_desc,
+                              cpp::BlockDesc *cpp_desc) {
+  cpp_desc->SetIdx(pb_desc->ID());
+  cpp_desc->SetParentIdx(pb_desc->Parent());
+  cpp_desc->SetForwardBlockIdx(pb_desc->ForwardBlockID());
+
+  cpp_desc->ClearOps();
+  const auto &all_ops = pb_desc->AllOps();
+  for (const auto &op : all_ops) {
+    auto *cpp_op_desc = cpp_desc->AddOp<cpp::OpDesc>();
+    TransformOpDescToCinn(op, cpp_op_desc);
+  }
+
+  cpp_desc->ClearVars();
+  const auto &all_vars = pb_desc->AllVars();
+  for (const auto &var : all_vars) {
+    auto *cpp_var_desc = cpp_desc->AddVar<cpp::VarDesc>();
+    TransformVarDescToCinn(var, cpp_var_desc);
+  }
+}
+
+void TransformBlockDescFromCinn(const cpp::BlockDesc &cpp_desc,
+                                framework::BlockDesc *pb_desc) {
+  pb_desc->Proto()->Clear();
+
+  pb_desc->Proto()->set_idx(cpp_desc.Idx());
+  pb_desc->Proto()->set_parent_idx(cpp_desc.ParentIdx());
+  pb_desc->Proto()->set_forward_block_idx(cpp_desc.ForwardBlockIdx());
+
+  for (size_t i = 0; i < cpp_desc.OpsSize(); ++i) {
+    const auto &cpp_op_desc =
+        cpp_desc.template GetConstOp<cpp::OpDesc>(static_cast<int32_t>(i));
+    auto *pb_op_desc = pb_desc->AppendOp();
+    TransformOpDescFromCinn(cpp_op_desc, pb_op_desc);
+  }
+
+  for (size_t i = 0; i < cpp_desc.VarsSize(); ++i) {
+    const auto &cpp_var_desc =
+        cpp_desc.template GetConstVar<cpp::VarDesc>(static_cast<int32_t>(i));
+    auto *pb_var_desc = pb_desc->Var(cpp_var_desc.Name());
+    TransformVarDescFromCinn(cpp_var_desc, pb_var_desc);
+  }
+}
+
+/// For ProgramDesc transform
+void TransformProgramDescToCinn(framework::ProgramDesc *pb_desc,
+                                cpp::ProgramDesc *cpp_desc) {
+  if (pb_desc->Proto()->version().has_version()) {
+    cpp_desc->SetVersion(pb_desc->Version());
+  }
+
+  cpp_desc->ClearBlocks();
+  for (size_t i = 0; i < pb_desc->Size(); ++i) {
+    auto *pb_block_desc = pb_desc->MutableBlock(i);
+    auto *cpp_block_desc = cpp_desc->AddBlock<cpp::BlockDesc>();
+    TransformBlockDescToCinn(pb_block_desc, cpp_block_desc);
+  }
+}
+
+void TransformProgramDescFromCinn(const cpp::ProgramDesc &cpp_desc,
+                                  framework::ProgramDesc *pb_desc) {
+  pb_desc->Proto()->Clear();
+
+  if (cpp_desc.HasVersion()) {
+    pb_desc->SetVersion(cpp_desc.Version());
+  }
+
+  // For paddle proto program, the only way to add block is invoke
+  // AppendBlock(),
+  // the AppendBlock need one necessary parameter: const BlockDesc &parent,
+  // but the only function of parent is set the block's parent_idx value.
+  // Meanwhile a program has at least one block, so we set block0 to all
+  // sub-block's parent in initial and cannot remove.
+  // Don't worry, it will be change in "TransformBlockDescFromCinn".
+  auto *block0 = pb_desc->MutableBlock(0);
+
+  for (size_t i = 0; i < cpp_desc.BlocksSize(); ++i) {
+    const auto &cpp_block_desc = cpp_desc.GetConstBlock<cpp::BlockDesc>(i);
+    framework::BlockDesc *pb_block_desc = nullptr;
+    if (i < pb_desc->Size()) {
+      pb_block_desc = pb_desc->MutableBlock(i);
+    } else {
+      pb_block_desc = pb_desc->AppendBlock(*block0);
+    }
+    TransformBlockDescFromCinn(cpp_block_desc, pb_block_desc);
+  }
+}
+
+}  // namespace paddle2cinn
+}  // namespace framework
+}  // namespace paddle
diff --git a/paddle/fluid/framework/paddle2cinn/transform_desc.h b/paddle/fluid/framework/paddle2cinn/transform_desc.h
new file mode 100644
index 0000000000000000000000000000000000000000..76a4f812730dfa5e02e56d44066eceb767d45450
--- /dev/null
+++ b/paddle/fluid/framework/paddle2cinn/transform_desc.h
@@ -0,0 +1,79 @@
+// Copyright (c) 2021 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 "paddle/fluid/framework/block_desc.h"
+#include "paddle/fluid/framework/op_desc.h"
+#include "paddle/fluid/framework/program_desc.h"
+#include "paddle/fluid/framework/var_desc.h"
+
+#include "cinn/frontend/paddle/cpp/block_desc.h"
+#include "cinn/frontend/paddle/cpp/desc_api.h"
+#include "cinn/frontend/paddle/cpp/op_desc.h"
+#include "cinn/frontend/paddle/cpp/program_desc.h"
+#include "cinn/frontend/paddle/cpp/var_desc.h"
+
+namespace paddle {
+namespace framework {
+namespace paddle2cinn {
+
+::cinn::frontend::paddle::cpp::VarDescAPI::Type TransformVarTypeToCinn(
+    const ::paddle::framework::proto::VarType::Type& type);
+
+::paddle::framework::proto::VarType::Type TransformVarTypeFromCinn(
+    const ::cinn::frontend::paddle::cpp::VarDescAPI::Type& type);
+
+::cinn::frontend::paddle::cpp::VarDescAPI::Type TransformVarDataTypeToCinn(
+    const ::paddle::framework::proto::VarType::Type& type);
+
+::paddle::framework::proto::VarType::Type TransformVarDataTypeFromCpp(
+    const ::cinn::frontend::paddle::cpp::VarDescAPI::Type& type);
+
+// Why use framework::VarDesc* rather than const framework::VarDesc& here?
+// framework::VarDesc lack of many API like clear(), etc. On the other hand,
+// the paddle node return framework::Desc* even if the node is const
+void TransformVarDescToCinn(framework::VarDesc* pb_desc,
+                            ::cinn::frontend::paddle::cpp::VarDesc* cpp_desc);
+
+void TransformVarDescFromCinn(
+    const ::cinn::frontend::paddle::cpp::VarDesc& cpp_desc,
+    framework::VarDesc* pb_desc);
+
+void TransformOpDescToCinn(framework::OpDesc* pb_desc,
+                           ::cinn::frontend::paddle::cpp::OpDesc* cpp_desc);
+
+void TransformOpDescFromCinn(
+    const ::cinn::frontend::paddle::cpp::OpDesc& cpp_desc,
+    framework::OpDesc* pb_desc);
+
+void TransformBlockDescToCinn(
+    framework::BlockDesc* pb_desc,
+    ::cinn::frontend::paddle::cpp::BlockDesc* cpp_desc);
+
+void TransformBlockDescFromCinn(
+    const ::cinn::frontend::paddle::cpp::BlockDesc& cpp_desc,
+    framework::BlockDesc* pb_desc);
+
+void TransformProgramDescToCinn(
+    framework::ProgramDesc* pb_desc,
+    ::cinn::frontend::paddle::cpp::ProgramDesc* cpp_desc);
+
+void TransformProgramDescFromCinn(
+    const ::cinn::frontend::paddle::cpp::ProgramDesc& cpp_desc,
+    framework::ProgramDesc* pb_desc);
+
+}  // namespace paddle2cinn
+}  // namespace framework
+}  // namespace paddle
diff --git a/paddle/fluid/framework/paddle2cinn/transform_desc_test.cc b/paddle/fluid/framework/paddle2cinn/transform_desc_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ba324295cad7234fcf3d2e5bbd040d207fb3adeb
--- /dev/null
+++ b/paddle/fluid/framework/paddle2cinn/transform_desc_test.cc
@@ -0,0 +1,236 @@
+// Copyright (c) 2021 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 <unordered_map>
+
+#include "gtest/gtest.h"
+#include "paddle/fluid/framework/paddle2cinn/transform_desc.h"
+
+namespace paddle {
+namespace framework {
+namespace paddle2cinn {
+
+using PbVarType = framework::proto::VarType;
+namespace cpp = ::cinn::frontend::paddle::cpp;
+
+// check VarDesc
+cpp::VarDesc CreateCppVarDesc() {
+  cpp::VarDesc var("test");
+  var.SetType(cpp::VarDescAPI::Type::LOD_TENSOR);
+  var.SetPersistable(true);
+  var.SetDataType(cpp::VarDescAPI::Type::FP32);
+  var.SetShape({100, 200, 300});
+  return var;
+}
+
+framework::VarDesc CreatePbVarDesc() {
+  framework::VarDesc var("test");
+  var.SetType(PbVarType::LOD_TENSOR);
+  var.SetPersistable(true);
+  var.SetDataType(PbVarType::FP32);
+  var.SetShape({100, 200, 300});
+  return var;
+}
+
+TEST(TransformVarDesc, cpp2pb) {
+  auto cpp_var = CreateCppVarDesc();
+  framework::VarDesc pb_var("init");
+  TransformVarDescFromCinn(cpp_var, &pb_var);
+
+  auto correct_var = CreatePbVarDesc();
+  ASSERT_EQ(pb_var.Name(), correct_var.Name());
+  ASSERT_EQ(pb_var.GetType(), correct_var.GetType());
+  ASSERT_EQ(pb_var.Persistable(), correct_var.Persistable());
+  ASSERT_EQ(pb_var.GetDataType(), correct_var.GetDataType());
+  ASSERT_EQ(pb_var.GetShape(), correct_var.GetShape());
+}
+
+TEST(TransformVarDesc, pb2cpp) {
+  auto pb_var = CreatePbVarDesc();
+  cpp::VarDesc cpp_var;
+  TransformVarDescToCinn(&pb_var, &cpp_var);
+
+  auto correct_var = CreateCppVarDesc();
+  ASSERT_EQ(cpp_var.Name(), correct_var.Name());
+  ASSERT_EQ(cpp_var.GetType(), correct_var.GetType());
+  ASSERT_EQ(cpp_var.Persistable(), correct_var.Persistable());
+  ASSERT_EQ(cpp_var.GetDataType(), correct_var.GetDataType());
+  ASSERT_EQ(cpp_var.GetShape(), correct_var.GetShape());
+}
+
+// check OpDesc
+cpp::OpDesc CreateCppOpDesc() {
+  cpp::OpDesc op;
+  op.SetType("test");
+  op.SetInput("X", {"x1"});
+  op.SetInput("Y", {"y1", "y2"});
+  op.SetOutput("Out", {"out1"});
+  op.SetAttr<float>("attr_f", 0.1f);
+  op.SetAttr<std::string>("attr_str", "test_attr");
+  return op;
+}
+
+framework::OpDesc CreatePbOpDesc() {
+  framework::OpDesc op;
+  op.SetType("test");
+  op.SetInput("X", {"x1"});
+  op.SetInput("Y", {"y1", "y2"});
+  op.SetOutput("Out", {"out1"});
+  op.SetAttr("attr_f", 0.1f);
+  op.SetAttr("attr_str", std::string("test_attr"));
+  return op;
+}
+
+TEST(TransformOpDesc, cpp2pb) {
+  auto cpp_op = CreateCppOpDesc();
+  framework::OpDesc pb_op;
+  TransformOpDescFromCinn(cpp_op, &pb_op);
+
+  auto correct_op = CreatePbOpDesc();
+  ASSERT_EQ(pb_op.Type(), correct_op.Type());
+  ASSERT_EQ(pb_op.Inputs(), correct_op.Inputs());
+  ASSERT_EQ(pb_op.Outputs(), correct_op.Outputs());
+  ASSERT_EQ(pb_op.AttrNames(), correct_op.AttrNames());
+
+  for (const auto &attr_name : pb_op.AttrNames()) {
+    ASSERT_EQ(pb_op.GetAttrType(attr_name), correct_op.GetAttrType(attr_name));
+  }
+  ASSERT_EQ(pb_op.GetAttrIfExists<float>("attr_f"),
+            correct_op.GetAttrIfExists<float>("attr_f"));
+  ASSERT_EQ(pb_op.GetAttrIfExists<std::string>("attr_str"),
+            correct_op.GetAttrIfExists<std::string>("attr_str"));
+}
+
+TEST(TransformOpDesc, pb2cpp) {
+  auto pb_op = CreatePbOpDesc();
+  cpp::OpDesc cpp_op;
+  TransformOpDescToCinn(&pb_op, &cpp_op);
+
+  auto correct_op = CreateCppOpDesc();
+  ASSERT_EQ(cpp_op.Type(), correct_op.Type());
+  ASSERT_EQ(cpp_op.inputs(), correct_op.inputs());
+  ASSERT_EQ(cpp_op.outputs(), correct_op.outputs());
+  ASSERT_EQ(cpp_op.AttrNames(), correct_op.AttrNames());
+  ASSERT_EQ(cpp_op.attr_types(), correct_op.attr_types());
+
+  ASSERT_EQ(cpp_op.GetAttr<float>("attr_f"),
+            correct_op.GetAttr<float>("attr_f"));
+  ASSERT_EQ(cpp_op.GetAttr<std::string>("attr_str"),
+            correct_op.GetAttr<std::string>("attr_str"));
+}
+
+// check BlockDesc
+// framework::BlockDesc is DISABLE_COPY_AND_ASSIGN, so can not return
+void CreateCppBlockDesc(cpp::BlockDesc *block) {
+  block->SetIdx(42);
+  block->SetParentIdx(4);
+  block->SetForwardBlockIdx(32);
+
+  auto *op = block->AddOp<cpp::OpDesc>();
+  *op = CreateCppOpDesc();
+
+  auto *var = block->AddVar<cpp::VarDesc>();
+  *var = CreateCppVarDesc();
+}
+
+void CreatePbBlockDesc(framework::BlockDesc *block) {
+  block->Proto()->set_idx(42);
+  block->Proto()->set_parent_idx(4);
+  block->Proto()->set_forward_block_idx(32);
+
+  auto *op = block->AppendOp();
+  *op = CreatePbOpDesc();
+
+  auto *var = block->Var("init");
+  *var = CreatePbVarDesc();
+}
+
+TEST(TransformBlockDesc, cpp2pb) {
+  cpp::BlockDesc cpp_block;
+  CreateCppBlockDesc(&cpp_block);
+
+  framework::ProgramDesc pb_prog;
+  auto *pb_block = pb_prog.MutableBlock(0);
+  TransformBlockDescFromCinn(cpp_block, pb_block);
+
+  framework::ProgramDesc correct_prog;
+  auto *correct_block = correct_prog.MutableBlock(0);
+  CreatePbBlockDesc(correct_block);
+  ASSERT_EQ(pb_block->ID(), correct_block->ID());
+  ASSERT_EQ(pb_block->Parent(), correct_block->Parent());
+  ASSERT_EQ(pb_block->ForwardBlockID(), correct_block->ForwardBlockID());
+  ASSERT_EQ(pb_block->OpSize(), correct_block->OpSize());
+  ASSERT_EQ(pb_block->AllVars().size(), correct_block->AllVars().size());
+}
+
+TEST(TransformBlockDesc, pb2cpp) {
+  framework::ProgramDesc pb_prog;
+  auto *pb_block = pb_prog.MutableBlock(0);
+  CreatePbBlockDesc(pb_block);
+
+  cpp::BlockDesc cpp_block;
+  TransformBlockDescToCinn(pb_block, &cpp_block);
+
+  cpp::BlockDesc correct_block;
+  CreateCppBlockDesc(&correct_block);
+  ASSERT_EQ(cpp_block.Idx(), correct_block.Idx());
+  ASSERT_EQ(cpp_block.ParentIdx(), correct_block.ParentIdx());
+  ASSERT_EQ(cpp_block.ForwardBlockIdx(), correct_block.ForwardBlockIdx());
+  ASSERT_EQ(cpp_block.OpsSize(), correct_block.OpsSize());
+  ASSERT_EQ(cpp_block.VarsSize(), correct_block.VarsSize());
+}
+
+// check ProgramDesc
+cpp::ProgramDesc CreateCppProgramDesc() {
+  cpp::ProgramDesc prog;
+  prog.SetVersion(22);
+
+  auto *block = prog.AddBlock<cpp::BlockDesc>();
+  CreateCppBlockDesc(block);
+
+  return prog;
+}
+
+framework::ProgramDesc CreatePbProgramDesc() {
+  framework::ProgramDesc prog;
+  prog.SetVersion(22);
+
+  auto *block = prog.MutableBlock(0);
+  CreatePbBlockDesc(block);
+  return prog;
+}
+
+TEST(TransformProgramDesc, cpp2pb) {
+  auto cpp_prog = CreateCppProgramDesc();
+  framework::ProgramDesc pb_prog;
+  TransformProgramDescFromCinn(cpp_prog, &pb_prog);
+
+  auto correct_prog = CreatePbProgramDesc();
+  ASSERT_EQ(pb_prog.Version(), correct_prog.Version());
+  ASSERT_EQ(pb_prog.Size(), correct_prog.Size());
+}
+
+TEST(TransformProgramDesc, pb2cpp) {
+  auto pb_prog = CreatePbProgramDesc();
+  cpp::ProgramDesc cpp_prog;
+  TransformProgramDescToCinn(&pb_prog, &cpp_prog);
+
+  auto correct_prog = CreateCppProgramDesc();
+  ASSERT_EQ(cpp_prog.Version(), correct_prog.Version());
+  ASSERT_EQ(cpp_prog.BlocksSize(), correct_prog.BlocksSize());
+}
+
+}  // namespace paddle2cinn
+}  // namespace framework
+}  // namespace paddle