diff --git a/core/cnlog.cpp b/core/cnlog.cpp
index 20b1bcd71..82f53d2f6 100644
--- a/core/cnlog.cpp
+++ b/core/cnlog.cpp
@@ -33,7 +33,7 @@
 
 #include "tool.h"
 
-#if defined(WINDOWS) || defined(WIN32)  // used in windows
+#if defined(WINDOWS) || defined(WIN32)  // used in  windows
 
 #include <windows.h>
 #include <process.h>
diff --git a/kernels/abs/abs_block.mlu b/kernels/abs/abs_block.mlu
index 37990dd9c..b309e1663 100644
--- a/kernels/abs/abs_block.mlu
+++ b/kernels/abs/abs_block.mlu
@@ -41,7 +41,7 @@ __mlu_func__ void auxFunc3AbsFloat(size_t &output_input_gap,
                                    size_t &auxiliary_b_gap,
                                    size_t &span_num_deal, size_t &align_num) {
   align_num = NFU_ALIGN_SIZE / sizeof(T1);
-  // need 2 pingpong sapce,
+  // need 2 pingpong sapce
   span_num_deal = PAD_DOWN(UNARY_NRAM_SIZE / sizeof(T1) / 2, align_num);
   ping_pong_gap = span_num_deal * sizeof(T1);
   output_input_gap = 0;
@@ -54,7 +54,7 @@ __mlu_func__ void auxFunc3AbsHalfBfloat16(
     size_t &output_input_gap, size_t &ping_pong_gap, size_t &auxiliary_a_gap,
     size_t &auxiliary_b_gap, size_t &span_num_deal, size_t &align_num) {
   align_num = NFU_ALIGN_SIZE / sizeof(T1);
-  // need 2 pingpong sapce,
+  // need 2 pingpong sapce
   span_num_deal = PAD_DOWN(UNARY_NRAM_SIZE / sizeof(T1) / 2, align_num);
   ping_pong_gap = span_num_deal * sizeof(T1) * 2;
   output_input_gap = 0;
diff --git a/kernels/active_rotated_filter/active_rotated_filter.cpp b/kernels/active_rotated_filter/active_rotated_filter.cpp
index f6a491888..ac4c7ee11 100644
--- a/kernels/active_rotated_filter/active_rotated_filter.cpp
+++ b/kernels/active_rotated_filter/active_rotated_filter.cpp
@@ -36,7 +36,7 @@
 mluOpStatus_t MLUOP_WIN_API mluOpGetActiveRotatedFilterForwardWorkspaceSize(
     const mluOpHandle_t handle, const mluOpTensorDescriptor_t input_desc,
     size_t *workspace_size) {
-  // handle and desc ptr check null
+  // handle and desc ptr check  null
   const std::string api_name = "[mluOpActiveRotatedFilterForwardWorkspace]";
   PARAM_CHECK(api_name, handle != NULL);
   PARAM_CHECK(api_name, input_desc != NULL);
diff --git a/test/mlu_op_gtest/pb_gtest/src/zoo/adam_w/adam_w.cpp b/test/mlu_op_gtest/pb_gtest/src/zoo/adam_w/adam_w.cpp
index 23a24ad82..51fc56e04 100644
--- a/test/mlu_op_gtest/pb_gtest/src/zoo/adam_w/adam_w.cpp
+++ b/test/mlu_op_gtest/pb_gtest/src/zoo/adam_w/adam_w.cpp
@@ -33,7 +33,7 @@ void AdamWExecutor::paramCheck() {
   if (parser_->getInputNum() != 5) {
     LOG(ERROR) << "AdamW input number is wrong. ";
   }
-  // set flag
+  // set  flag
   flag_input_reuse_ = true;
 }