diff --git a/src/collapse/README.md b/src/collapse/README.md
index 7d3c514f7..cb79310f3 100644
--- a/src/collapse/README.md
+++ b/src/collapse/README.md
@@ -97,7 +97,7 @@ export default {
 
 | Event | Description | Arguments |
 |------|------|------|
-| change | Triggered when switch panel | activeNames: `string | array` |
+| change | Triggered when switch panel | activeNames: `string[] | number[] | string | number` |
 
 ### CollapseItem Props
 
diff --git a/src/collapse/README.zh-CN.md b/src/collapse/README.zh-CN.md
index 39b72526b..84f5be9aa 100644
--- a/src/collapse/README.zh-CN.md
+++ b/src/collapse/README.zh-CN.md
@@ -98,7 +98,7 @@ export default {
 
 | 事件名 | 说明 | 回调参数 |
 |------|------|------|
-| change | 切换面板时触发 | activeNames: `string | array` |
+| change | 切换面板时触发 | activeNames: `string[] | number[] | string | number` |
 
 ### CollapseItem Props