diff --git a/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.cc b/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.cc
index 62340fae844ba5562bf260ed88559ef38e91b5ad..63e719fcac56cd5953b1d33c0f4c956b383491ee 100644
--- a/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.cc
+++ b/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.cc
@@ -82,7 +82,7 @@ void RankCpuKernel<T>::SetFunc() {
   switch (method_) {
     case Method::Max: {
       func_ = [](int i, int duplicate_count, int culmutive_rank, const AxisIterator &axisIterator,
-                 const size_t *sort_idx, float *output_addr) {
+                 const size_t *const sort_idx, float *const output_addr) {
         for (int j = i - duplicate_count + 1; j < i + 1; ++j) {
           output_addr[axisIterator.GetPos(sort_idx[j])] = i + 1;
         }
@@ -90,7 +90,7 @@ void RankCpuKernel<T>::SetFunc() {
     } break;
     case Method::Min: {
       func_ = [](int i, int duplicate_count, int culmutive_rank, const AxisIterator &axisIterator,
-                 const size_t *sort_idx, float *output_addr) {
+                 const size_t *const sort_idx, float *const output_addr) {
         for (int j = i - duplicate_count + 1; j < i + 1; ++j) {
           output_addr[axisIterator.GetPos(sort_idx[j])] = i - duplicate_count + 2;
         }
@@ -103,7 +103,7 @@ void RankCpuKernel<T>::SetFunc() {
       // rank_sum = sum + duplicate_count = duplicate_count * (2 * i - duplicate_count + 3) / 2
       // avg = rank_sum / duplicate_count = (2 * i - duplicate_count + 3) / 2
       func_ = [](int i, int duplicate_count, int culmutive_rank, const AxisIterator &axisIterator,
-                 const size_t *sort_idx, float *output_addr) {
+                 const size_t *const sort_idx, float *const output_addr) {
         float avg = (2 * i - duplicate_count + 3) / 2.0;
         for (int j = i - duplicate_count + 1; j < i + 1; ++j) {
           output_addr[axisIterator.GetPos(sort_idx[j])] = avg;
@@ -112,7 +112,7 @@ void RankCpuKernel<T>::SetFunc() {
     } break;
     case Method::First: {
       func_ = [](int i, int duplicate_count, int culmutive_rank, const AxisIterator &axisIterator,
-                 const size_t *sort_idx, float *output_addr) {
+                 const size_t *const sort_idx, float *const output_addr) {
         for (int j = i - duplicate_count + 1; j < i + 1; ++j) {
           output_addr[axisIterator.GetPos(sort_idx[j])] = j + 1;
         }
@@ -120,7 +120,7 @@ void RankCpuKernel<T>::SetFunc() {
     } break;
     case Method::Dense: {
       func_ = [](int i, int duplicate_count, int culmutive_rank, const AxisIterator &axisIterator,
-                 const size_t *sort_idx, float *output_addr) {
+                 const size_t *const sort_idx, float *const output_addr) {
         for (int j = i - duplicate_count + 1; j < i + 1; ++j) {
           output_addr[axisIterator.GetPos(sort_idx[j])] = culmutive_rank;
         }
diff --git a/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.h b/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.h
index 50964c77d0b1fc4d9c1a4788113275764400cd34..de841f2216d644dd7b80dc33fe3314cc4da69880 100644
--- a/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.h
+++ b/mindspore/ccsrc/backend/kernel_compiler/cpu/rank_cpu_kernel.h
@@ -60,13 +60,12 @@ class RankCpuKernel : public CPUKernel {
               const std::vector<AddressPtr> &outputs) override;
 
  private:
-  size_t rank_size_;
   // shape info
   AxisIterator axisIterator_{};
   // parameters
   size_t axis_{0};
   rank::Method method_{rank::MethodNotDefined};
-  std::function<void(int, int, int, const AxisIterator &, const size_t *, float *)> func_;
+  std::function<void(int, int, int, const AxisIterator &, const size_t *const, float *const)> func_;
   rank::NaOption option_{rank::OptionNotDefined};
   bool ascending_{true};
   bool pct_{false};