diff --git a/docs/zh-CN/components/form/input-tree.md b/docs/zh-CN/components/form/input-tree.md
index 234919ebb..a55b7d7e6 100755
--- a/docs/zh-CN/components/form/input-tree.md
+++ b/docs/zh-CN/components/form/input-tree.md
@@ -907,6 +907,7 @@ true        false        true       [{label: 'A/B/C', value: 'a/b/c'},{label: 'A
 | rootLabel              | `boolean`                                    | `"顶级"`         | 当 `hideRoot` 不为 `false` 时有用，用来设置顶级节点的文字。                                                         |
 | showIcon               | `boolean`                                    | `true`           | 是否显示图标                                                                                                        |
 | showRadio              | `boolean`                                    | `false`          | 是否显示单选按钮，`multiple` 为 `false` 是有效。                                                                    |
+| showOutline            | `boolean`                                    | `false`          | 是否显示树层级展开线                                                                                                |
 | initiallyOpen          | `boolean`                                    | `true`           | 设置是否默认展开所有层级。                                                                                          |
 | unfoldedLevel          | `number`                                     | `0`              | 设置默认展开的级数，只有`initiallyOpen`不是`true`时生效。                                                           |
 | autoCheckChildren      | `boolean`                                    | `true`           | 当选中父节点时级联选择子节点。                                                                                    |
@@ -940,4 +941,4 @@ true        false        true       [{label: 'A/B/C', value: 'a/b/c'},{label: 'A
 | expand         | openLevel: `number`                               | 配置展开层级 |
 | collapse       | -                                                 |  关闭树|
 | clear          | -                                                 | 清除数据 |
-| reset          | -                                                 | 重置数据 |
\ No newline at end of file
+| reset          | -                                                 | 重置数据 |
diff --git a/src/renderers/Form/TreeSelect.tsx b/src/renderers/Form/TreeSelect.tsx
index b703e67c3..7830201eb 100644
--- a/src/renderers/Form/TreeSelect.tsx
+++ b/src/renderers/Form/TreeSelect.tsx
@@ -94,6 +94,11 @@ export interface TreeSelectControlSchema extends FormOptionsControl {
    * 开启节点路径模式后，节点路径的分隔符
    */
   pathSeparator?: string;
+
+  /**
+   * 是否显示展开线
+   */
+  showOutline?: boolean;
 }
 
 export interface TreeSelectProps extends OptionsControlProps {
@@ -536,7 +541,8 @@ export default class TreeSelectControl extends React.Component<
       translate: __,
       deferLoad,
       expandTreeOptions,
-      selfDisabledAffectChildren
+      selfDisabledAffectChildren,
+      showOutline
     } = this.props;
 
     let filtedOptions =
@@ -568,6 +574,7 @@ export default class TreeSelectControl extends React.Component<
         rootValue={rootValue}
         showIcon={showIcon}
         showRadio={showRadio}
+        showOutline={showOutline}
         cascade={cascade}
         foldedField="collapsed"
         hideRoot