diff --git a/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-textinput.md b/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-textinput.md
index 29f93fa0b7de5903f7be000afd76dfc4596a0caf..8b644b52036200bbfd1e31321a25339615997ec6 100644
--- a/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-textinput.md
+++ b/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-textinput.md
@@ -130,7 +130,7 @@ caretPosition(value: number): void
 | value  | number   | 是   | 从字符串开始到光标所在位置的字符长度。 |
 ### setTextSelection<sup>10+</sup>
 
-setTextSelection(selectionStart:&nbsp;number, selectionStart:&nbsp;number): void
+setTextSelection(selectionStart:&nbsp;number, selectionEnd:&nbsp;number): void
 
 设置文本选择区域并高亮显示。