diff --git a/APP_Framework/Framework/transform_layer/nuttx/transform.c b/APP_Framework/Framework/transform_layer/nuttx/transform.c
index 7b8553a1a..dfab2295a 100644
--- a/APP_Framework/Framework/transform_layer/nuttx/transform.c
+++ b/APP_Framework/Framework/transform_layer/nuttx/transform.c
@@ -90,9 +90,9 @@ void PrivTaskQuit(void *value_ptr)
     pthread_exit(value_ptr);
 }
 
-int PrivTaskDelay(int32_t ms)
+void PrivTaskDelay(int32_t ms)
 {
-    return usleep(ms);
+    usleep(1000 * ms);
 }
 
 uint32_t PrivGetTickTime(){
diff --git a/APP_Framework/Framework/transform_layer/nuttx/transform.h b/APP_Framework/Framework/transform_layer/nuttx/transform.h
index e99456053..a6b1e091b 100644
--- a/APP_Framework/Framework/transform_layer/nuttx/transform.h
+++ b/APP_Framework/Framework/transform_layer/nuttx/transform.h
@@ -191,7 +191,7 @@ int PrivTaskCreate(pthread_t *thread, const pthread_attr_t *attr,
 int PrivTaskStartup(pthread_t *thread);
 int PrivTaskDelete(pthread_t thread, int sig);
 void PrivTaskQuit(void *value_ptr);
-int PrivTaskDelay(int32_t ms);
+void PrivTaskDelay(int32_t ms);
 uint32_t PrivGetTickTime();
 
 /*********************driver*************************/