diff --git a/mindspore/ccsrc/device/cpu/kernel_select_cpu.cc b/mindspore/ccsrc/device/cpu/kernel_select_cpu.cc
index 95a75e26882..76e91e059aa 100644
--- a/mindspore/ccsrc/device/cpu/kernel_select_cpu.cc
+++ b/mindspore/ccsrc/device/cpu/kernel_select_cpu.cc
@@ -109,6 +109,21 @@ bool IsInputFormatDtypeMatched(const KernelAttr &kernel_attr, const std::vector<
   }
   return true;
 }
+
+void ExpandKernelAttr(const CNodePtr &kernel_node, KernelAttr *kernel_attr) {
+  MS_EXCEPTION_IF_NULL(kernel_attr);
+  TypeId input_dtype = kernel_attr->GetInputAttr(0).first;
+  size_t input_num = AnfAlgo::GetInputTensorNum(kernel_node);
+  for (size_t i = 1; i < input_num; ++i) {
+    kernel_attr->AddInputAttr(input_dtype);
+  }
+
+  TypeId output_dtype = kernel_attr->GetOutputAttr(0).first;
+  size_t output_num = AnfAlgo::GetOutputTensorNum(kernel_node);
+  for (size_t i = 1; i < output_num; ++i) {
+    kernel_attr->AddOutputAttr(output_dtype);
+  }
+}
 }  // namespace
 
 void SetKernelInfo(const CNodePtr &kernel_node) {
@@ -125,12 +140,16 @@ void SetKernelInfo(const CNodePtr &kernel_node) {
     kernel::CPUKernelFactory::GetInstance().GetSupportedKernelAttrList(AnfAlgo::GetCNodeName(kernel_node));
 
   for (size_t index = 0; index < kernel_attrs.size(); ++index) {
-    if (IsInputFormatDtypeMatched(kernel_attrs[index], input_formats, input_types, input_not_cnode_indexes)) {
+    auto kernel_attr = kernel_attrs[index];
+    if (kernel_attr.GetAllSame()) {
+      ExpandKernelAttr(kernel_node, &kernel_attr);
+    }
+    if (IsInputFormatDtypeMatched(kernel_attr, input_formats, input_types, input_not_cnode_indexes)) {
       MS_LOG(INFO) << "Input format and dtype is matched, index: " << index;
-      GetOutputFormatsAndDtypes(kernel_node, kernel_attrs[index], &output_formats, &output_types);
-      UpdatePrevNotCNodeFormatDtype(kernel_attrs[index], input_not_cnode_indexes, kernel_node);
+      GetOutputFormatsAndDtypes(kernel_node, kernel_attr, &output_formats, &output_types);
+      UpdatePrevNotCNodeFormatDtype(kernel_attr, input_not_cnode_indexes, kernel_node);
       for (auto &input_index : input_not_cnode_indexes) {
-        input_types[input_index] = kernel_attrs[index].GetInputAttr(input_index).first;
+        input_types[input_index] = kernel_attr.GetInputAttr(input_index).first;
       }
       break;
     }
diff --git a/mindspore/ccsrc/device/cpu/kernel_select_cpu.h b/mindspore/ccsrc/device/cpu/kernel_select_cpu.h
index 5242c7b34e6..d2138ec66da 100644
--- a/mindspore/ccsrc/device/cpu/kernel_select_cpu.h
+++ b/mindspore/ccsrc/device/cpu/kernel_select_cpu.h
@@ -46,8 +46,14 @@ class KernelAttr {
     return *this;
   }
 
+  KernelAttr &SetAllSameAttr(bool all_same) {
+    all_same_ = all_same;
+    return *this;
+  }
+
   const DataType &GetInputAttr(const size_t index) const { return input_type_[index]; }
   const DataType &GetOutputAttr(const size_t index) const { return output_type_[index]; }
+  bool GetAllSame() const { return all_same_; }
 
   size_t GetInputSize() const { return input_type_.size(); }
   size_t GetOutputSize() const { return output_type_.size(); }
@@ -55,6 +61,7 @@ class KernelAttr {
  private:
   std::vector<DataType> input_type_;
   std::vector<DataType> output_type_;
+  bool all_same_;
 };
 }  // namespace cpu
 }  // namespace device
diff --git a/mindspore/ccsrc/kernel/cpu/addn_cpu_kernel.h b/mindspore/ccsrc/kernel/cpu/addn_cpu_kernel.h
index 70b65233c73..1a1a9157d9c 100644
--- a/mindspore/ccsrc/kernel/cpu/addn_cpu_kernel.h
+++ b/mindspore/ccsrc/kernel/cpu/addn_cpu_kernel.h
@@ -39,16 +39,8 @@ class AddNCPUKernel : public CPUKernel {
   std::vector<size_t> output_shape_;
 };
 
-MS_REG_CPU_KERNEL(
-  AddN,
-  KernelAttr().AddInputAttr(kNumberTypeFloat32).AddInputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32),
-  AddNCPUKernel);
 MS_REG_CPU_KERNEL(AddN,
-                  KernelAttr()
-                    .AddInputAttr(kNumberTypeFloat32)
-                    .AddInputAttr(kNumberTypeFloat32)
-                    .AddInputAttr(kNumberTypeFloat32)
-                    .AddOutputAttr(kNumberTypeFloat32),
+                  KernelAttr().SetAllSameAttr(true).AddInputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32),
                   AddNCPUKernel);
 }  // namespace kernel
 }  // namespace mindspore
diff --git a/mindspore/ccsrc/kernel/cpu/concat_cpu_kernel.h b/mindspore/ccsrc/kernel/cpu/concat_cpu_kernel.h
index 1d74979b558..46f9078178d 100644
--- a/mindspore/ccsrc/kernel/cpu/concat_cpu_kernel.h
+++ b/mindspore/ccsrc/kernel/cpu/concat_cpu_kernel.h
@@ -41,10 +41,9 @@ class ConcatCPUKernel : public CPUKernel {
   std::vector<size_t> output_shape_;
 };
 
-MS_REG_CPU_KERNEL(
-  Concat,
-  KernelAttr().AddInputAttr(kNumberTypeFloat32).AddInputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32),
-  ConcatCPUKernel);
+MS_REG_CPU_KERNEL(Concat,
+                  KernelAttr().SetAllSameAttr(true).AddInputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32),
+                  ConcatCPUKernel);
 }  // namespace kernel
 }  // namespace mindspore
 
diff --git a/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.cc b/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.cc
index 55b37ba13fa..bcda7af9fd9 100644
--- a/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.cc
+++ b/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.cc
@@ -59,28 +59,27 @@ std::pair<bool, size_t> CPUKernelFactory::CPUKernelAttrCheck(const std::string &
   auto creators = iter->second;
   for (size_t index = 0; index < creators.size(); ++index) {
     auto attr_creator = creators[index];
-    if (CPUKernelSingleAttrCheck(attr_creator, kernel_info)) {
+    if (CPUKernelSingleAttrCheck(attr_creator.first, kernel_info)) {
       return std::make_pair(true, index);
     }
   }
   return std::make_pair(false, 0);
 }
 
-bool CPUKernelFactory::CPUKernelSingleAttrCheck(const std::pair<KernelAttr, CPUKernelCreator> &attr_creator,
-                                                const KernelBuildInfo &kernel_info) {
+bool CPUKernelFactory::CPUKernelSingleAttrCheck(const KernelAttr &kernel_attr, const KernelBuildInfo &kernel_info) {
   for (size_t i = 0; i < kernel_info.GetInputNum(); ++i) {
-    if (kernel_info.GetInputDeviceType(i) != attr_creator.first.GetInputAttr(i).first) {
-      MS_LOG(DEBUG) << "cpu kernel attr check failed. input index: " << i << ".";
-      MS_LOG(DEBUG) << "kernel info type:" << kernel_info.GetInputDeviceType(i) << ", "
-                    << "register type:" << attr_creator.first.GetInputAttr(i).first;
+    auto dtype = kernel_attr.GetAllSame() ? kernel_attr.GetInputAttr(0).first : kernel_attr.GetInputAttr(i).first;
+    if (kernel_info.GetInputDeviceType(i) != dtype) {
+      MS_LOG(DEBUG) << "input index:" << i << ", kernel info type:" << kernel_info.GetInputDeviceType(i)
+                    << ", register type:" << dtype;
       return false;
     }
   }
   for (size_t i = 0; i < kernel_info.GetOutputNum(); ++i) {
-    if (kernel_info.GetOutputDeviceType(i) != attr_creator.first.GetOutputAttr(i).first) {
-      MS_LOG(DEBUG) << "cpu kernel attr check failed. output index: " << i << ".";
-      MS_LOG(DEBUG) << "kernel info type:" << kernel_info.GetOutputDeviceType(i) << ", "
-                    << "register type:" << attr_creator.first.GetOutputAttr(i).first;
+    auto dtype = kernel_attr.GetAllSame() ? kernel_attr.GetOutputAttr(0).first : kernel_attr.GetOutputAttr(i).first;
+    if (kernel_info.GetOutputDeviceType(i) != dtype) {
+      MS_LOG(DEBUG) << "output index:" << i << ", kernel info type:" << kernel_info.GetOutputDeviceType(i)
+                    << ", register type:" << dtype;
       return false;
     }
   }
diff --git a/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.h b/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.h
index b3901d257ec..52eda12ba7c 100644
--- a/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.h
+++ b/mindspore/ccsrc/kernel/cpu/cpu_kernel_factory.h
@@ -35,7 +35,6 @@ class CPUKernelFactory {
  public:
   static CPUKernelFactory &GetInstance();
   void Register(const std::string &kernel_name, const KernelAttr &kernel_attr, CPUKernelCreator &&kernel_creator);
-  std::shared_ptr<CPUKernel> Create(const std::string &kernel_name);
   std::shared_ptr<CPUKernel> Create(const std::string &kernel_name, const CNodePtr &apply_kernel);
   std::vector<KernelAttr> GetSupportedKernelAttrList(const std::string &kernel_name);
 
@@ -44,8 +43,7 @@ class CPUKernelFactory {
   ~CPUKernelFactory() = default;
   DISABLE_COPY_AND_ASSIGN(CPUKernelFactory)
   std::pair<bool, size_t> CPUKernelAttrCheck(const std::string &kernel_name, const KernelBuildInfo &kernel_info);
-  bool CPUKernelSingleAttrCheck(const std::pair<KernelAttr, CPUKernelCreator> &attr_creator,
-                                const KernelBuildInfo &kernel_info);
+  bool CPUKernelSingleAttrCheck(const KernelAttr &kernel_attr, const KernelBuildInfo &kernel_info);
   std::map<std::string, std::vector<std::pair<KernelAttr, CPUKernelCreator>>> name_to_attr_creator_;
 };
 
diff --git a/tests/st/ops/cpu/test_concat_op.py b/tests/st/ops/cpu/test_concat_op.py
index 42ac8e08435..9d5067a35d6 100644
--- a/tests/st/ops/cpu/test_concat_op.py
+++ b/tests/st/ops/cpu/test_concat_op.py
@@ -71,13 +71,13 @@ def test_in2_axis1():
     assert np.all(diff < error)
     assert np.all(-diff < error)
 
-class Concat_Axis2(nn.Cell):
+class Concat_in3_Axis2(nn.Cell):
     def __init__(self):
-        super(Concat_Axis2, self).__init__()
+        super(Concat_in3_Axis2, self).__init__()
         self.cat = P.Concat(axis=-1)
 
-    def construct(self, x1, x2):
-        return self.cat((x1, x2))
+    def construct(self, x1, x2, x3):
+        return self.cat((x1, x2, x3))
 
 @pytest.mark.level0
 @pytest.mark.platform_x86_cpu
@@ -86,10 +86,10 @@ def test_in3_axis2():
     x1 = Tensor(np.arange(2 * 2 * 1).reshape(2, 2, 1), mstype.float32)
     x2 = Tensor(np.arange(2 * 2 * 2).reshape(2, 2, 2), mstype.float32)
     x3 = Tensor(np.arange(2 * 2 * 3).reshape(2, 2, 3), mstype.float32)
-    cat = Concat_Axis2()
-    output_ms = cat(x1, x2)
+    cat = Concat_in3_Axis2()
+    output_ms = cat(x1, x2, x3)
     print("output:\n", output_ms)
-    output_np = np.concatenate((x1.asnumpy(), x2.asnumpy()), axis=-1)
+    output_np = np.concatenate((x1.asnumpy(), x2.asnumpy(), x3.asnumpy()), axis=-1)
 
     error = np.ones(shape=output_np.shape) * 10e-6
     diff = output_ms.asnumpy() - output_np