diff --git a/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md b/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md
index be90e66cc0ab2da4beec22f2ebac93dc24c49683..cbe8b4a0409696ac743792da72fbff94699bce70 100644
--- a/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md
+++ b/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md
@@ -11,7 +11,7 @@
 
 ## 接口
 
-CustomDialogController(value:{builder: CustomDialog, cancel?: () => void, autoCancel?: boolean, alignment?: DialogAlignment, offset?: Offset, customStyle?: boolean})
+CustomDialogController(value:{builder: CustomDialog, cancel?: () => void, autoCancel?: boolean, alignment?: DialogAlignment, offset?: Offset, customStyle?: boolean,gridCount?: number})
 
 
 - 参数