diff --git a/components/cascader/index.en-US.md b/components/cascader/index.en-US.md
index 67557f427c..474852079d 100644
--- a/components/cascader/index.en-US.md
+++ b/components/cascader/index.en-US.md
@@ -91,7 +91,7 @@ Common props ref：[Common props](/docs/react/common-props)
 | onOpenChange | Callback when popup shown or hidden | (value) => void | - |  |
 | multiple | Support multiple or not | boolean | - | 4.17.0 |
 | removeIcon | The custom remove icon | ReactNode | - |  |
-| showCheckedStrategy | The way show selected item in box. ** `SHOW_CHILD`: ** just show child treeNode. **`Cascader.SHOW_PARENT`:** just show parent treeNode (when all child treeNode under the parent treeNode are checked) | `Cascader.SHOW_PARENT` \| `Cascader.SHOW_CHILD` | `Cascader.SHOW_PARENT` | 4.20.0 |
+| showCheckedStrategy | The way to show selected items in the box (only effective when `multiple` is `true`). `Cascader.SHOW_CHILD`: just show child treeNode. `Cascader.SHOW_PARENT`: just show parent treeNode (when all child treeNode under the parent treeNode are checked) | `Cascader.SHOW_PARENT` \| `Cascader.SHOW_CHILD` | `Cascader.SHOW_PARENT` | 4.20.0 |
 | ~~searchValue~~ | Set search value, Need work with `showSearch` | string | - | 4.17.0 |
 | ~~onSearch~~ | The callback function triggered when input changed | (search: string) => void | - | 4.17.0 |
 | ~~dropdownMenuColumnStyle~~ | The style of the drop-down menu column, use `popupMenuColumnStyle` instead | CSSProperties | - |  |
diff --git a/components/cascader/index.zh-CN.md b/components/cascader/index.zh-CN.md
index ef90c2fcd0..1203a29bb8 100644
--- a/components/cascader/index.zh-CN.md
+++ b/components/cascader/index.zh-CN.md
@@ -91,7 +91,7 @@ demo:
 | ~~onDropdownVisibleChange~~ | 显示/隐藏浮层的回调，请使用 `onOpenChange` 替换 | (value) => void | - | 4.17.0 |
 | onOpenChange | 显示/隐藏浮层的回调 | (value) => void | - |  |
 | multiple | 支持多选节点 | boolean | - | 4.17.0 |
-| showCheckedStrategy | 定义选中项回填的方式。`Cascader.SHOW_CHILD`: 只显示选中的子节点。`Cascader.SHOW_PARENT`: 只显示父节点（当父节点下所有子节点都选中时）。 | `Cascader.SHOW_PARENT` \| `Cascader.SHOW_CHILD` | `Cascader.SHOW_PARENT` | 4.20.0 |
+| showCheckedStrategy | 定义选中项回填的方式（仅在 `multiple` 为 `true` 时生效）。`Cascader.SHOW_CHILD`: 只显示选中的子节点。`Cascader.SHOW_PARENT`: 只显示父节点（当父节点下所有子节点都选中时）。 | `Cascader.SHOW_PARENT` \| `Cascader.SHOW_CHILD` | `Cascader.SHOW_PARENT` | 4.20.0 |
 | removeIcon | 自定义的多选框清除图标 | ReactNode | - |  |
 | ~searchValue~ | 设置搜索的值，需要与 `showSearch` 配合使用 | string | - | 4.17.0 |
 | ~onSearch~ | 监听搜索，返回输入的值 | (search: string) => void | - | 4.17.0 |