diff --git a/mindspore/lite/src/runtime/kernel/arm/fp16/gather_fp16.cc b/mindspore/lite/src/runtime/kernel/arm/fp16/gather_fp16.cc
index 6d7e0bab37..8e40a1bccb 100644
--- a/mindspore/lite/src/runtime/kernel/arm/fp16/gather_fp16.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/fp16/gather_fp16.cc
@@ -45,7 +45,7 @@ int GatherFp16CPUKernel::Init() {
       reinterpret_cast<float16_t *>(context_->allocator->Malloc(input_tensor->ElementsNum() * sizeof(float16_t)));
     Float32ToFloat16(reinterpret_cast<float *>(input_tensor->data_c()), input_data_, input_tensor->ElementsNum());
   }
-
+  (reinterpret_cast<GatherParameter *>(op_parameter_))->axis_ = *(reinterpret_cast<int *>(in_tensors_.at(2)->data_c()));
   if (!InferShapeDone()) {
     return RET_OK;
   }
diff --git a/mindspore/lite/src/runtime/kernel/npu/matmul_npu.cc b/mindspore/lite/src/runtime/kernel/npu/matmul_npu.cc
index 08a9de491f..63e6006c48 100644
--- a/mindspore/lite/src/runtime/kernel/npu/matmul_npu.cc
+++ b/mindspore/lite/src/runtime/kernel/npu/matmul_npu.cc
@@ -15,7 +15,9 @@
  */
 
 #include "src/runtime/kernel/npu/matmul_npu.h"
+#include <memory>
 #include "src/kernel_registry.h"
+#include "src/runtime/agent/npu/npu_converter_utils.h"
 
 using mindspore::kernel::KERNEL_ARCH::kNPU;
 using mindspore::lite::KernelRegistrar;
@@ -24,6 +26,11 @@ using mindspore::schema::PrimitiveType_MatMul;
 namespace mindspore::kernel {
 int MatMulNPUKernel::IsSupport(const std::vector<lite::Tensor *> &inputs, const std::vector<lite::Tensor *> &outputs,
                                OpParameter *opParameter) {
+  if (inputs.size() == 3) {
+    if (inputs[2]->shape().size() != 1) {
+      return RET_ERROR;
+    }
+  }
   return RET_OK;
 }
 
@@ -33,7 +40,33 @@ int MatMulNPUKernel::SetNPUInputs(const std::vector<lite::Tensor *> &inputs, con
   op_->set_input_x1(*npu_inputs[0]);
   op_->set_input_x2(*npu_inputs[1]);
   if (npu_inputs.size() == 3) {
-    op_->set_input_bias(*npu_inputs[2]);
+    matmul_parameter_->has_bias_ = true;
+    add_op_ = new (std::nothrow) hiai::op::Add(name_ + "_add");
+    if (add_op_ == nullptr) {
+      MS_LOG(ERROR) << "new add op failed.";
+      return RET_ERROR;
+    }
+    add_op_->set_input_x1(*op_);
+    auto bias_shape = inputs[2]->shape();
+    auto bias_tensor = std::make_shared<ge::Tensor>();
+    if (bias_tensor == nullptr) {
+      MS_LOG(ERROR) << "new bias_tensor failed.";
+      return RET_ERROR;
+    }
+    ge::TensorDesc bias_tensor_desc(lite::ConverterToNPUShape({1, bias_shape[0], 1, 1}), ge::FORMAT_NCHW,
+                                    lite::ConverterToNPUDataType(inputs[2]->data_type()));
+    if (outputs[0]->shape().size() == 2) {
+      bias_tensor_desc.SetShape(lite::ConverterToNPUShape({1, bias_shape[0]}));
+    }
+    bias_tensor->SetTensorDesc(bias_tensor_desc);
+    bias_tensor->SetData(reinterpret_cast<const uint8_t *>(inputs[2]->data_c()), inputs[2]->Size());
+    bias_ = new (std::nothrow) hiai::op::Const(name_ + "_bias");
+    if (bias_ == nullptr) {
+      MS_LOG(ERROR) << "new bias const failed.";
+      return RET_ERROR;
+    }
+    bias_->set_attr_value(bias_tensor);
+    add_op_->set_input_x2(*bias_);
   }
 
   op_->set_attr_transpose_x1(matmul_parameter_->a_transpose_);
@@ -41,13 +74,26 @@ int MatMulNPUKernel::SetNPUInputs(const std::vector<lite::Tensor *> &inputs, con
   return RET_OK;
 }
 
-ge::Operator *mindspore::kernel::MatMulNPUKernel::GetNPUOp() { return this->op_; }
+ge::Operator *mindspore::kernel::MatMulNPUKernel::GetNPUOp() {
+  if (matmul_parameter_->has_bias_) {
+    return add_op_;
+  }
+  return op_;
+}
 
 MatMulNPUKernel::~MatMulNPUKernel() {
   if (op_ != nullptr) {
     delete op_;
     op_ = nullptr;
   }
+  if (add_op_ != nullptr) {
+    delete add_op_;
+    add_op_ = nullptr;
+  }
+  if (bias_ != nullptr) {
+    delete bias_;
+    bias_ = nullptr;
+  }
 }
 
 REG_KERNEL(kNPU, kNumberTypeFloat32, PrimitiveType_MatMul, NPUKernelCreator<MatMulNPUKernel>)
diff --git a/mindspore/lite/src/runtime/kernel/npu/matmul_npu.h b/mindspore/lite/src/runtime/kernel/npu/matmul_npu.h
index 4b54d9e293..23dfb4ae04 100644
--- a/mindspore/lite/src/runtime/kernel/npu/matmul_npu.h
+++ b/mindspore/lite/src/runtime/kernel/npu/matmul_npu.h
@@ -39,6 +39,8 @@ class MatMulNPUKernel : public NPUKernel {
 
  private:
   hiai::op::MatMul *op_ = nullptr;
+  hiai::op::Add *add_op_ = nullptr;
+  hiai::op::Const *bias_ = nullptr;
   MatMulParameter *matmul_parameter_;
 };
 }  // namespace mindspore::kernel
diff --git a/mindspore/lite/test/CMakeLists.txt b/mindspore/lite/test/CMakeLists.txt
index ea67f57c84..9a9374f141 100644
--- a/mindspore/lite/test/CMakeLists.txt
+++ b/mindspore/lite/test/CMakeLists.txt
@@ -11,12 +11,12 @@ STRING(REPLACE " -fvisibility=hidden " " -fvisibility=default " CMAKE_C_FLAGS "$
 STRING(REPLACE " -fvisibility=hidden " " -fvisibility=default " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
 
 if(ENABLE_CONVERTER)
-set(CCSRC_SRC
-        ## ccsrc
-        ${CCSRC_DIR}/backend/optimizer/common/pattern_engine.cc
-        ${CCSRC_DIR}/backend/optimizer/common/visit.cc
-        ${CCSRC_DIR}/backend/optimizer/common/optimizer.cc
-        )
+    set(CCSRC_SRC
+            ## ccsrc
+            ${CCSRC_DIR}/backend/optimizer/common/pattern_engine.cc
+            ${CCSRC_DIR}/backend/optimizer/common/visit.cc
+            ${CCSRC_DIR}/backend/optimizer/common/optimizer.cc
+            )
 else()
     set(TEST_LITE_SRC ${LITE_DIR}/src/common/log_adapter.cc)
     add_compile_definitions(USE_ANDROID_LOG)
@@ -38,10 +38,10 @@ file(GLOB KERNEL_OP_SRC
 file(GLOB KERNEL_OP_TRAIN_SRC
         ${LITE_DIR}/nnacl/fp32_grad/*.c
         ${LITE_DIR}/src/runtime/kernel/arm/fp32_grad/*.cc
-)
+        )
 
 if(SUPPORT_TRAIN)
-        list(APPEND KERNEL_OP_SRC ${KERNEL_OP_TRAIN_SRC})
+    list(APPEND KERNEL_OP_SRC ${KERNEL_OP_TRAIN_SRC})
 endif()
 if(PLATFORM_ARM64)
     # assembly
@@ -114,9 +114,9 @@ if(SUPPORT_GPU STREQUAL vulkan)
 endif()
 
 if(PLATFORM_ARM32 OR PLATFORM_ARM64)
-  if(ENABLE_CONVERTER)
-    set(BUILD_MINDDATA "off")
-  endif()
+    if(ENABLE_CONVERTER)
+        set(BUILD_MINDDATA "off")
+    endif()
 endif()
 ### runtime framework
 add_definitions(-DENABLE_V0)
@@ -189,19 +189,19 @@ if(ENABLE_MINDRT)
     include_directories(${CORE_DIR}/mindrt/)
     include_directories(${CORE_DIR}/mindrt/src/)
     set(TEST_LITE_SRC ${TEST_LITE_SRC}
-        ${LITE_DIR}/src/lite_mindrt.cc
-        ${LITE_DIR}/src/mindrt_executor.cc
-        ${CORE_DIR}/mindrt/src/litebus.cc
-        ${CORE_DIR}/mindrt/src/actor/actor.cc
-        ${CORE_DIR}/mindrt/src/actor/actormgr.cc
-        ${CORE_DIR}/mindrt/src/actor/actorpolicy.cc
-        ${CORE_DIR}/mindrt/src/actor/actorthread.cc
-        ${CORE_DIR}/mindrt/src/actor/aid.cc
-        ${CORE_DIR}/mindrt/src/async/async.cc
-        ${CORE_DIR}/mindrt/src/async/future.cc
-        ${CORE_DIR}/mindrt/src/async/uuid_base.cc
-        ${CORE_DIR}/mindrt/src/async/uuid_generator.cc
-        )
+            ${LITE_DIR}/src/lite_mindrt.cc
+            ${LITE_DIR}/src/mindrt_executor.cc
+            ${CORE_DIR}/mindrt/src/litebus.cc
+            ${CORE_DIR}/mindrt/src/actor/actor.cc
+            ${CORE_DIR}/mindrt/src/actor/actormgr.cc
+            ${CORE_DIR}/mindrt/src/actor/actorpolicy.cc
+            ${CORE_DIR}/mindrt/src/actor/actorthread.cc
+            ${CORE_DIR}/mindrt/src/actor/aid.cc
+            ${CORE_DIR}/mindrt/src/async/async.cc
+            ${CORE_DIR}/mindrt/src/async/future.cc
+            ${CORE_DIR}/mindrt/src/async/uuid_base.cc
+            ${CORE_DIR}/mindrt/src/async/uuid_generator.cc
+            )
 endif()
 
 
@@ -242,6 +242,7 @@ if(ENABLE_CONVERTER)
             ${LITE_DIR}/tools/optimizer/fusion/tf_lstm_cell_fusion.cc
             ${LITE_DIR}/tools/optimizer/fusion/tf_bidirection_gru_fusion.cc
             ${LITE_DIR}/tools/optimizer/fusion/tf_bidirection_gru_cf_fusion.cc
+            ${LITE_DIR}/tools/optimizer/fusion/matmul_add_fusion.cc
             ${LITE_DIR}/tools/optimizer/graph/weight_format_transform_pass.cc
             ${LITE_DIR}/tools/optimizer/graph/weight_format_hardcode_pass.cc
             ${LITE_DIR}/tools/optimizer/graph/clip_convert_activation_pass.cc
@@ -286,16 +287,16 @@ else()
 endif()
 ### test src
 file(GLOB_RECURSE TEST_CASE_KERNEL_SRC
-    ${TEST_DIR}/ut/src/runtime/kernel/arm/common/*.cc
-    ${TEST_DIR}/ut/src/runtime/kernel/arm/fp32/*.cc
-    ${TEST_DIR}/ut/src/runtime/kernel/arm/int8/*.cc
-    ${TEST_DIR}/ut/src/runtime/kernel/arm/string/*.cc
-    ${TEST_DIR}/ut/nnacl/infer/*.cc
-)
+        ${TEST_DIR}/ut/src/runtime/kernel/arm/common/*.cc
+        ${TEST_DIR}/ut/src/runtime/kernel/arm/fp32/*.cc
+        ${TEST_DIR}/ut/src/runtime/kernel/arm/int8/*.cc
+        ${TEST_DIR}/ut/src/runtime/kernel/arm/string/*.cc
+        ${TEST_DIR}/ut/nnacl/infer/*.cc
+        )
 
 file(GLOB_RECURSE TEST_CASE_KERNEL_TRAIN_SRC
-    ${TEST_DIR}/ut/src/runtime/kernel/arm/fp32_grad/*.cc
-)
+        ${TEST_DIR}/ut/src/runtime/kernel/arm/fp32_grad/*.cc
+        )
 
 set(TEST_SRC
         ${TEST_LITE_SRC}
@@ -306,7 +307,7 @@ set(TEST_SRC
         ${TEST_DIR}/ut/src/infer_test.cc
         ${TEST_DIR}/ut/src/utils_test.cc
         ${TEST_DIR}/ut/src/scheduler_test.cc
-)
+        )
 
 if(ENABLE_CONVERTER)
     set(TEST_SRC
@@ -358,7 +359,7 @@ endif()
 
 if(ENABLE_FP16 AND SUPPORT_TRAIN)
     file(GLOB_RECURSE TEST_CASE_KERNEL_FP16_SRC_GRAD
-        ${TEST_DIR}/ut/src/runtime/kernel/arm/fp16_grad/*.cc)
+            ${TEST_DIR}/ut/src/runtime/kernel/arm/fp16_grad/*.cc)
     list(APPEND TEST_SRC ${TEST_CASE_KERNEL_FP16_SRC_GRAD})
 endif()
 
diff --git a/mindspore/lite/tools/converter/CMakeLists.txt b/mindspore/lite/tools/converter/CMakeLists.txt
index 41a19824ea..70f5a8fe87 100644
--- a/mindspore/lite/tools/converter/CMakeLists.txt
+++ b/mindspore/lite/tools/converter/CMakeLists.txt
@@ -52,6 +52,7 @@ file(GLOB_RECURSE CONVERTER_SRC RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
         ../optimizer/fusion/tf_lstm_cell_fusion.cc
         ../optimizer/fusion/tf_bidirection_gru_fusion.cc
         ../optimizer/fusion/tf_bidirection_gru_cf_fusion.cc
+        ../optimizer/fusion/matmul_add_fusion.cc
         ../optimizer/graph/weight_format_transform_pass.cc
         ../optimizer/graph/weight_format_hardcode_pass.cc
         ../optimizer/graph/clip_convert_activation_pass.cc
diff --git a/mindspore/lite/tools/converter/anf_transform.cc b/mindspore/lite/tools/converter/anf_transform.cc
index 42d0545bea..28acec5da5 100644
--- a/mindspore/lite/tools/converter/anf_transform.cc
+++ b/mindspore/lite/tools/converter/anf_transform.cc
@@ -35,6 +35,7 @@
 #include "tools/optimizer/fusion/tf_lstm_cell_fusion.h"
 #include "tools/optimizer/fusion/tf_bidirection_gru_fusion.h"
 #include "tools/optimizer/fusion/tf_bidirection_gru_cf_fusion.h"
+#include "tools/optimizer/fusion/matmul_add_fusion.h"
 #include "tools/optimizer/graph/primitive_adjust_pass.h"
 #include "tools/optimizer/graph/mindir_adjust_pass.h"
 #include "tools/optimizer/graph/redundant_op_remove_pass.h"
@@ -107,6 +108,9 @@ int AnfTransform::AddFusionPass(const std::shared_ptr<opt::GraphOptimizer> &opti
     fusion_pm->AddPass(remove_unused_transpose_pass);
   }
   fusion_pm->AddPass(std::make_shared<opt::ConvConvFusion>());
+  if (!config->trainModel) {
+    fusion_pm->AddPass(std::make_shared<opt::MatMulAddFusion>());
+  }
   optimizer->AddPassManager(fusion_pm);
   return RET_OK;
 }
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_gemm_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_gemm_parser.cc
deleted file mode 100644
index 82e7e2b719..0000000000
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_gemm_parser.cc
+++ /dev/null
@@ -1,48 +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 "tools/converter/parser/onnx/onnx_gemm_parser.h"
-#include <vector>
-#include <memory>
-#include "ops/make_tuple.h"
-
-namespace mindspore {
-namespace lite {
-ops::PrimitiveC *OnnxGemmParser::Parse(const onnx::GraphProto &onnx_graph, const onnx::NodeProto &onnx_node) {
-  auto prim = std::make_unique<ops::MakeTuple>();
-
-  auto node_parser = OnnxNodeParserRegistry::GetInstance()->GetNodeParser("MatMul");
-  if (node_parser == nullptr) {
-    MS_LOG(ERROR) << "parse node " << onnx_node.op_type() << " failed.";
-    return nullptr;
-  }
-  auto *matmul_primitive = node_parser->Parse(onnx_graph, onnx_node);
-  prim->AddAttr("MatMul", std::shared_ptr<ops::PrimitiveC>(matmul_primitive));
-
-  node_parser = OnnxNodeParserRegistry::GetInstance()->GetNodeParser("BiasAdd");
-  if (node_parser == nullptr) {
-    MS_LOG(ERROR) << "parse node " << onnx_node.op_type() << " failed.";
-    return nullptr;
-  }
-  auto *bias_add_primitive = node_parser->Parse(onnx_graph, onnx_node);
-  prim->AddAttr("BiasAdd", std::shared_ptr<ops::PrimitiveC>(bias_add_primitive));
-
-  return prim.release();
-}
-
-OnnxNodeRegistrar g_onnxGemmParser("Gemm", new OnnxGemmParser());
-}  // namespace lite
-}  // namespace mindspore
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_gemm_parser.h b/mindspore/lite/tools/converter/parser/onnx/onnx_gemm_parser.h
deleted file mode 100644
index 948deca088..0000000000
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_gemm_parser.h
+++ /dev/null
@@ -1,34 +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_TOOLS_CONVERTER_PARSER_ONNX_GEMM_PARSER_H
-#define MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_ONNX_GEMM_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 OnnxGemmParser : public OnnxNodeParser {
- public:
-  OnnxGemmParser() : OnnxNodeParser("Gemm") {}
-  ~OnnxGemmParser() override = default;
-
-  ops::PrimitiveC *Parse(const onnx::GraphProto &onnx_graph, const onnx::NodeProto &onnx_node) override;
-};
-}  // namespace lite
-}  // namespace mindspore
-#endif  // MINDSPORE_LITE_TOOLS_CONVERTER_PARSER_ONNX_GEMM_PARSER_H
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_matmul_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_matmul_parser.cc
index dbb798bf1a..02747c6e57 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_matmul_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_matmul_parser.cc
@@ -46,5 +46,6 @@ ops::PrimitiveC *OnnxMatmulParser::Parse(const onnx::GraphProto &onnx_graph, con
 }
 
 OnnxNodeRegistrar g_onnxMatmulParser("MatMul", new OnnxMatmulParser());
+OnnxNodeRegistrar g_onnxGemmParser("Gemm", new OnnxMatmulParser());
 }  // namespace lite
 }  // namespace mindspore
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
index 4986f123f9..a39985a3d8 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
@@ -44,7 +44,6 @@ static const std::unordered_map<int, mindspore::TypeId> TYPE_MAP = {
   {onnx::TensorProto_DataType_FLOAT, mindspore::kNumberTypeFloat32},
   {onnx::TensorProto_DataType_BOOL, mindspore::kNumberTypeBool}};
 
-std::set<std::string> SPECIAL_NODE = {"Gemm"};
 FuncGraphPtr OnnxModelParser::Parse(const std::string &model_file, const std::string &weight_file,
                                     const QuantType &quant_type) {
   NoSupportOp::GetInstance()->SetFmkType("ONNX");
@@ -215,11 +214,6 @@ STATUS OnnxModelParser::ConvertNodes(const onnx::GraphProto &onnx_graph, const F
       MS_LOG(ERROR) << "convert " << onnx_node.op_type() << " quant param failed.";
       continue;
     }
-    if (IsSpecialOnnxNode(onnx_node)) {
-      auto status_node = ConvertSpecialOnnxNode(onnx_node, anf_graph, anf_nodes_map, primitive_c);
-      status = status == RET_OK ? status_node : status;
-      continue;
-    }
     // build CNode
     status = BuildCNode(onnx_node, anf_graph, anf_nodes_map, graph_inputs, primitive_c, root_node_name);
     if (status != RET_OK) {
@@ -1023,117 +1017,6 @@ STATUS OnnxModelParser::BuildCondGraph(const FuncGraphPtr &cond_graph, const Anf
   return status;
 }
 
-STATUS OnnxModelParser::ConvertSpecialOnnxNode(const onnx::NodeProto &onnx_node, const FuncGraphPtr &anf_graph,
-                                               std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
-                                               ops::PrimitiveC *primitive_c) {
-  if (primitive_c == nullptr || anf_graph == nullptr) {
-    MS_LOG(ERROR) << "imitive_c is nullptr.";
-    return RET_NULL_PTR;
-  }
-  STATUS status = RET_OK;
-  if (onnx_node.op_type() == "Gemm") {
-    status = ConvertOnnxGemmNode(onnx_node, anf_graph, anf_nodes_map, primitive_c);
-  } else {
-    MS_LOG(ERROR) << "the node is not special node.";
-    status = RET_ERROR;
-  }
-  delete primitive_c;
-  return status;
-}
-
-STATUS OnnxModelParser::ConvertOnnxGemmNode(const onnx::NodeProto &onnx_node, const FuncGraphPtr &anf_graph,
-                                            std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
-                                            ops::PrimitiveC *primitive_c) {
-  if (primitive_c == nullptr || anf_graph == nullptr) {
-    MS_LOG(ERROR) << "parameter has nullptr.";
-    return RET_NULL_PTR;
-  }
-  if (onnx_node.op_type() != "Gemm") {
-    MS_LOG(ERROR) << "this op is not gemm, it is " << onnx_node.op_type();
-    return RET_ERROR;
-  }
-  if (primitive_c == nullptr) {
-    MS_LOG(ERROR) << "primitive_c is nullptr.";
-    return RET_NULL_PTR;
-  }
-  auto status = BuildCNodeForGemm(onnx_node, anf_graph, anf_nodes_map, primitive_c, "MatMul");
-  if (status != RET_OK) {
-    MS_LOG(ERROR) << "convert gemm node failed.";
-    return status;
-  }
-  status = BuildCNodeForGemm(onnx_node, anf_graph, anf_nodes_map, primitive_c, "BiasAdd");
-  if (status != RET_OK) {
-    MS_LOG(ERROR) << "convert gemm node failed.";
-    return status;
-  }
-  return RET_OK;
-}
-
-STATUS OnnxModelParser::BuildCNodeForGemm(const onnx::NodeProto &onnx_node, const FuncGraphPtr &anf_graph,
-                                          std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
-                                          ops::PrimitiveC *primitive_c, const std::string &name) {
-  if (primitive_c == nullptr || anf_graph == nullptr) {
-    MS_LOG(ERROR) << "parameter has nullptr.";
-    return RET_NULL_PTR;
-  }
-  auto value = primitive_c->GetAttr(name);
-  primitive_c->EraseAttr(name);
-  if (value == nullptr) {
-    MS_LOG(ERROR) << "op parse failed.";
-    return RET_NULL_PTR;
-  }
-  auto prim_ptr = value->cast<std::shared_ptr<ops::PrimitiveC>>();
-  if (prim_ptr == nullptr) {
-    MS_LOG(ERROR) << "primitive parse failed.";
-    return RET_NULL_PTR;
-  }
-  auto type_ptr = TypeIdToType(kTypeUnknown);
-  std::vector<int64_t> shape_vector;
-  std::vector<AnfNodePtr> op_inputs;
-  auto quant_params_holder = std::make_shared<QuantParamHolder>();
-  auto quant_params_holder_origin = primitive_c->GetAttr("quant_params")->cast<QuantParamHolderPtr>();
-  if (name == "MatMul") {
-    for (int i = 0; i < 2; ++i) {
-      if (anf_nodes_map->find(onnx_node.input(i)) == anf_nodes_map->end()) {
-        MS_LOG(ERROR) << "op " << onnx_node.op_type() << " inputs get failed.";
-        return RET_ERROR;
-      } else {
-        op_inputs.push_back(anf_nodes_map->at(onnx_node.input(i)));
-        quant_params_holder->AddInputQuantParam(quant_params_holder_origin->input_quant_params().at(i));
-      }
-    }
-    quant_params_holder->AddOutputQuantParam(std::vector<schema::QuantParamT>(1));
-    auto new_cnode = anf_graph->NewCNode(prim_ptr, op_inputs);
-    if (new_cnode == nullptr) {
-      MS_LOG(ERROR) << "new cnode error";
-      return RET_ERROR;
-    }
-    new_cnode->set_fullname_with_scope("Gemm_MatMul_" + onnx_node.output(0));
-    new_cnode->set_abstract(std::make_shared<abstract::AbstractTensor>(type_ptr, shape_vector));
-    anf_nodes_map->emplace("Gemm_MatMul_" + onnx_node.output(0), new_cnode);
-  } else {
-    if (anf_nodes_map->find("Gemm_MatMul_" + onnx_node.output(0)) == anf_nodes_map->end() ||
-        anf_nodes_map->find(onnx_node.input(2)) == anf_nodes_map->end()) {
-      MS_LOG(ERROR) << "op " << onnx_node.op_type() << " inputs get failed.";
-      return RET_ERROR;
-    }
-    op_inputs.push_back(anf_nodes_map->at("Gemm_MatMul_" + onnx_node.output(0)));
-    op_inputs.push_back(anf_nodes_map->at(onnx_node.input(2)));
-    quant_params_holder->AddInputQuantParam(std::vector<schema::QuantParamT>(1));
-    quant_params_holder->AddInputQuantParam(quant_params_holder_origin->input_quant_params().at(2));
-    quant_params_holder->AddOutputQuantParam(quant_params_holder_origin->output_quant_params().front());
-    auto new_cnode = anf_graph->NewCNode(prim_ptr, op_inputs);
-    if (new_cnode == nullptr) {
-      MS_LOG(ERROR) << "new cnode error";
-      return RET_ERROR;
-    }
-    new_cnode->set_fullname_with_scope("Gemm_BiasAdd_" + onnx_node.output(0));
-    new_cnode->set_abstract(std::make_shared<abstract::AbstractTensor>(type_ptr, shape_vector));
-    anf_nodes_map->emplace(onnx_node.output(0), new_cnode);
-  }
-  return RET_OK;
-}
-
 STATUS OnnxModelParser::BuildParameterNodeForQuantParam(const void *data, const std::string &name, TypeId type) {
   if (data == nullptr) {
     MS_LOG(ERROR) << "value is nullptr.";
@@ -1281,10 +1164,6 @@ STATUS OnnxModelParser::CopyOnnxTensorData(const onnx::TensorProto &onnx_const_t
   return RET_OK;
 }
 
-bool OnnxModelParser::IsSpecialOnnxNode(const onnx::NodeProto &onnx_node) {
-  return SPECIAL_NODE.find(onnx_node.op_type()) != SPECIAL_NODE.end();
-}
-
 TypeId OnnxModelParser::GetDataTypeFromOnnx(onnx::TensorProto_DataType onnx_type) {
   auto iter = TYPE_MAP.find(onnx_type);
   if (iter == TYPE_MAP.end()) {
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.h b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.h
index 122fac9a49..8deb07d289 100644
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.h
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.h
@@ -69,21 +69,11 @@ class OnnxModelParser : public ModelParser {
                     ops::PrimitiveC *primitive_c, std::string loop_name);
   static STATUS BuildOpOutputs(const onnx::NodeProto &onnx_node, const FuncGraphPtr &func_graph_ptr,
                                std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map, const CNodePtr &cnode);
-  static STATUS ConvertSpecialOnnxNode(const onnx::NodeProto &onnx_node, const FuncGraphPtr &func_graph_ptr,
-                                       std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
-                                       ops::PrimitiveC *primitive_c);
-  static STATUS ConvertOnnxGemmNode(const onnx::NodeProto &onnx_node, const FuncGraphPtr &func_graph_ptr,
-                                    std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
-                                    ops::PrimitiveC *primitive_c);
-  static STATUS BuildCNodeForGemm(const onnx::NodeProto &onnx_node, const FuncGraphPtr &func_graph_ptr,
-                                  std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
-                                  ops::PrimitiveC *primitive_c, const std::string &name);
   STATUS ConvertOpQuantParams(const onnx::NodeProto &onnx_node, ops::PrimitiveC *primitive_c);
   STATUS ParseQuantParam(const onnx::NodeProto &onnx_node);
   STATUS SetTensorQuantParam(const std::string &tensor_name, std::vector<QuantParamT> *quant_params);
   STATUS SetTensorQuantParamFromNode(const std::string &tensor_name, std::vector<QuantParamT> *quant_params);
   STATUS CopyTensorQuantParam(const std::string &tensor_name, QuantParamT *quant_param, bool scale_or_not);
-  static bool IsSpecialOnnxNode(const onnx::NodeProto &onnx_node);
   STATUS ConvertLoopOnnxNode(const onnx::NodeProto &onnx_node,
                              std::unordered_map<std::string, AnfNodePtr> *anf_nodes_map,
                              const std::string &root_node_name);
diff --git a/mindspore/lite/tools/optimizer/fusion/matmul_add_fusion.cc b/mindspore/lite/tools/optimizer/fusion/matmul_add_fusion.cc
new file mode 100644
index 0000000000..ec068e21a5
--- /dev/null
+++ b/mindspore/lite/tools/optimizer/fusion/matmul_add_fusion.cc
@@ -0,0 +1,79 @@
+/**
+ * Copyright 2021 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/optimizer/fusion/matmul_add_fusion.h"
+#include "tools/optimizer/common/gllo_utils.h"
+
+namespace mindspore {
+namespace opt {
+namespace {
+constexpr size_t AddInputSize = 3;
+constexpr size_t MatMulInputSize = 3;
+bool CheckAndGetMatMulIndex(const CNodePtr &cnode, size_t *index) {
+  MS_ASSERT(cnode != nullptr);
+  MS_ASSERT(index != nullptr);
+  if (cnode->size() != AddInputSize) {
+    return false;
+  }
+  size_t matmul_index = 0;
+  for (size_t i = 1; i < cnode->size(); ++i) {
+    if (CheckPrimitiveType(cnode->input(i), prim::kPrimMatMul)) {
+      auto matmul_cnode = cnode->input(i)->cast<CNodePtr>();
+      if (matmul_cnode->size() > MatMulInputSize) {
+        continue;
+      }
+      matmul_index = i;
+      break;
+    }
+  }
+  if (matmul_index == 0) {
+    return false;
+  }
+  *index = matmul_index;
+  return true;
+}
+}  // namespace
+
+bool MatMulAddFusion::Run(const FuncGraphPtr &func_graph) {
+  MS_ASSERT(func_graph != nulltr);
+  auto node_list = TopoSort(func_graph->get_return());
+  for (auto &node : node_list) {
+    if (!utils::isa<CNode>(node)) {
+      continue;
+    }
+    auto cnode = node->cast<CNodePtr>();
+    if (!CheckPrimitiveType(node, prim::kPrimAddFusion) && !CheckPrimitiveType(node, prim::kPrimBiasAdd)) {
+      continue;
+    }
+    size_t index = 0;
+    if (!CheckAndGetMatMulIndex(cnode, &index)) {
+      continue;
+    }
+    auto matmul_cnode = cnode->input(index)->cast<CNodePtr>();
+    auto bias_node = cnode->input(AddInputSize - index);
+    if (!utils::isa<Parameter>(bias_node) || !bias_node->cast<ParameterPtr>()->default_param()) {
+      continue;
+    }
+    matmul_cnode->add_input(bias_node);
+    auto manager = func_graph->manager();
+    MS_ASSERT(manager != nullptr);
+    matmul_cnode->set_fullname_with_scope(node->fullname_with_scope());
+    manager->Replace(node, matmul_cnode);
+  }
+  return false;
+}
+}  // namespace opt
+}  // namespace mindspore
diff --git a/mindspore/lite/tools/optimizer/fusion/matmul_add_fusion.h b/mindspore/lite/tools/optimizer/fusion/matmul_add_fusion.h
new file mode 100644
index 0000000000..5513353019
--- /dev/null
+++ b/mindspore/lite/tools/optimizer/fusion/matmul_add_fusion.h
@@ -0,0 +1,34 @@
+/**
+ * Copyright 2021 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_PASS_FUSION_MATMUL_ADD_FUSION_H_
+#define MINDSPORE_LITE_SRC_PASS_FUSION_MATMUL_ADD_FUSION_H_
+
+#include "backend/optimizer/common/optimizer.h"
+#include "tools/converter/converter_context.h"
+#include "backend/optimizer/common/pass.h"
+
+namespace mindspore {
+namespace opt {
+class MatMulAddFusion : public Pass {
+ public:
+  MatMulAddFusion() : Pass("matmul_add_fusion") {}
+  ~MatMulAddFusion() override = default;
+  bool Run(const FuncGraphPtr &func_graph) override;
+};
+}  // namespace opt
+}  // namespace mindspore
+#endif  // MINDSPORE_LITE_SRC_PASS_FUSION_MATMUL_ADD_FUSION_H_