diff --git a/ge/single_op/single_op.cc b/ge/single_op/single_op.cc
index 0daf243e..9b74039e 100755
--- a/ge/single_op/single_op.cc
+++ b/ge/single_op/single_op.cc
@@ -165,7 +165,7 @@ FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status SingleOp::ExecuteAsync(c
     return ret;
   }
 
-  int index = 0;
+  uint32_t index = 0;
   for (auto &task : tasks_) {
     ret = task->LaunchKernel(stream_);
     if (ret != SUCCESS) {
@@ -180,7 +180,7 @@ FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status SingleOp::ExecuteAsync(c
   return ret;
 }
 
-Status SingleOp::ProfilingTaskInfo(int index) {
+Status SingleOp::ProfilingTaskInfo(uint32_t index) {
   if (op_name_.size() <= index) {
     GELOGE(ACL_ERROR_GE_PARAM_INVALID, "index[%d] is out of range of op_name_ size[%d].", index, op_name_.size());
     return ACL_ERROR_GE_PARAM_INVALID;
diff --git a/ge/single_op/single_op.h b/ge/single_op/single_op.h
index 91db5448..ecc532de 100755
--- a/ge/single_op/single_op.h
+++ b/ge/single_op/single_op.h
@@ -42,7 +42,7 @@ class SingleOp {
   Status ValidateArgs(const std::vector<DataBuffer> &inputs, const std::vector<DataBuffer> &outputs);
   Status UpdateArgs(const std::vector<DataBuffer> &inputs, const std::vector<DataBuffer> &outputs);
   Status GetArgs(const std::vector<DataBuffer> &inputs, const std::vector<DataBuffer> &outputs);
-  Status ProfilingTaskInfo(int index);
+  Status ProfilingTaskInfo(uint32_t index);
 
   friend class SingleOpModel;
   std::mutex *stream_mutex_;