diff --git a/zh-cn/application-dev/reference/apis/js-apis-thermal.md b/zh-cn/application-dev/reference/apis/js-apis-thermal.md
index ea63870d427b79c58891cf9eef7887c9e367de60..9bd068867455a080092d8df7be0964bcdad6ff54 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-thermal.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-thermal.md
@@ -53,7 +53,7 @@ thermal.subscribeThermalLevel((lev) => {
 
 ## thermal.unsubscribeThermalLevel
 
-unsubscribeThermalLevel(callback?: AsyncCallback<void>): void
+unsubscribeThermalLevel(callback?: AsyncCallback\<void>): void
 
 取消订阅热档位变化时的回调提醒。