diff --git a/rt-thread-version/rt-thread-standard/development-guide/sensor/sensor_driver_development.md b/rt-thread-version/rt-thread-standard/development-guide/sensor/sensor_driver_development.md
index 464c103973bda07aa166bf736550df750aecef7a..0759de81f7b1f6a20010549987b43d2f46aa799d 100644
--- a/rt-thread-version/rt-thread-standard/development-guide/sensor/sensor_driver_development.md
+++ b/rt-thread-version/rt-thread-standard/development-guide/sensor/sensor_driver_development.md
@@ -37,7 +37,7 @@
 
 sensor 框架共给出了两个接口（`fetch_data` / `control`），需要在驱动中实现这两个接口。
 
-**fetchdata**
+**fetch_data**
 
 作用： 获取传感器的数据。接口原型：