diff --git a/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_kernel.cc b/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_kernel.cc
index e467a35130e90b17c23b7029d40087c955c4241b..8b2013cf87d9615b9f64faf8f99914066ed58ee1 100644
--- a/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_kernel.cc
+++ b/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_kernel.cc
@@ -15,6 +15,7 @@
  */
 
 #include "nnacl/nnacl_kernel.h"
+#include "schema/model_generated.h"
 #include "nnacl/cxx_utils.h"
 #include "src/tensor.h"
 #include "include/errorcode.h"
@@ -169,6 +170,11 @@ int NNACLKernel::InitKernel(const TypeId &data_type, const lite::InnerContext *c
   if (out_ == nullptr) {
     return RET_ERROR;
   }
+  //Init fc kernel thread number to 1
+  if (op_parameter_ != nullptr && op_parameter_->type_ == static_cast<int>(mindspore::schema::PrimitiveType_FullConnection)) {
+    op_parameter_->thread_num_ = 1;
+    this->thread_num_ = 1;
+  }
 
   UpdateTensorC();
   kernel_ = CreateKernel(op_parameter_, in_, in_size_, out_, out_size_, data_type, exec_env_);
diff --git a/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_matmul.cc b/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_matmul.cc
index 913611c5147538d36e4521eff5476634a4356bc6..5dc1d725dc37652c6d1e5ab88b2c10069d79af6d 100644
--- a/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_matmul.cc
+++ b/mindspore-lite/src/litert/kernel/cpu/nnacl/nnacl_matmul.cc
@@ -43,6 +43,11 @@ int MatmulKernel::Prepare() {
   matmul->infer_shape_ = InferShapeDone();
   matmul->a_const_ = in_tensors_[FIRST_INPUT]->IsConst() && !op_parameter_->is_train_session_;
   matmul->b_const_ = in_tensors_[SECOND_INPUT]->IsConst() && !op_parameter_->is_train_session_;
+  //Init fc kernel thread number to 1
+  if (op_parameter_ != nullptr && op_parameter_->type_ == schema::PrimitiveType_FullConnection) {
+    kernel_->thread_nr_ = 1;
+  }
+
   int ret = kernel_->Prepare(kernel_);
   if (ret != RET_OK) {
     MS_LOG(ERROR) << "NNACL matmul/fc prepare failed. Kernel: " << name() << ", ret: " << ret;
diff --git a/mindspore-lite/tools/converter/quantizer/full_quant_quantizer.cc b/mindspore-lite/tools/converter/quantizer/full_quant_quantizer.cc
index 3f1aba2f5a0da87a480539937a049802091bd4fe..bfa06a6224b37e1b3626f8f6937e5d15935c3982 100644
--- a/mindspore-lite/tools/converter/quantizer/full_quant_quantizer.cc
+++ b/mindspore-lite/tools/converter/quantizer/full_quant_quantizer.cc
@@ -435,11 +435,11 @@ void FullQuantQuantizer::InitCpuConfig() {
   support_int8_ops_ = {
     // Compute
     prim::kPrimConv2DFusion,
-    prim::kPrimFullConnection,
+    // prim::kPrimFullConnection,
     prim::kPrimMatMulFusion,
     // Memory
-    prim::kPrimReshape,
-    prim::kPrimTranspose,
+    // prim::kPrimReshape,
+    // prim::kPrimTranspose,
     prim::kPrimShape,
     prim::kPrimUnsqueeze,
   };