diff --git a/src/components/AssociatedCheckboxes.tsx b/src/components/AssociatedCheckboxes.tsx
new file mode 100644
index 00000000..b105e2d7
--- /dev/null
+++ b/src/components/AssociatedCheckboxes.tsx
@@ -0,0 +1,17 @@
+/**
+ * 关联多选框，仅支持两层关联选择。
+ * 左边先点选，然后右边再次点选。
+ * 可以满足，先从 tree 中选中一个元素，然后查出来一个列表再次勾选。
+ */
+
+import React from 'react';
+
+export interface AssociatedCheckboxesProps {}
+
+export class AssociatedCheckboxes extends React.Component<
+  AssociatedCheckboxesProps
+> {
+  render() {
+    return <div>todo</div>;
+  }
+}
diff --git a/src/components/ChainedCheckboxes.tsx b/src/components/ChainedCheckboxes.tsx
index 4725d16a..1a75915f 100644
--- a/src/components/ChainedCheckboxes.tsx
+++ b/src/components/ChainedCheckboxes.tsx
@@ -1,3 +1,6 @@
+/**
+ * 级联多选框，支持无限极。从左侧到右侧一层层点选。
+ */
 import {Checkboxes, CheckboxesProps} from './Checkboxes';
 import {themeable} from '../theme';
 import React from 'react';
@@ -8,12 +11,16 @@ import {getTreeDepth} from '../utils/helper';
 import times from 'lodash/times';
 import Spinner from './Spinner';
 
+export interface ChainedCheckboxesProps extends CheckboxesProps {
+  defaultSelectedIndex?: string;
+}
+
 export interface ChainedCheckboxesState {
   selected: Array<string>;
 }
 
 export class ChainedCheckboxes extends Checkboxes<
-  CheckboxesProps,
+  ChainedCheckboxesProps,
   ChainedCheckboxesState
 > {
   valueArray: Array<Option>;
@@ -21,6 +28,16 @@ export class ChainedCheckboxes extends Checkboxes<
     selected: []
   };
 
+  componentDidMount() {
+    const defaultSelectedIndex = this.props.defaultSelectedIndex;
+
+    if (defaultSelectedIndex !== undefined) {
+      this.setState({
+        selected: [`${defaultSelectedIndex}`]
+      });
+    }
+  }
+
   selectOption(option: Option, depth: number, id: string) {
     const {onDeferLoad} = this.props;
 
diff --git a/src/components/TabsTransfer.tsx b/src/components/TabsTransfer.tsx
index 7ce36957..68980cb9 100644
--- a/src/components/TabsTransfer.tsx
+++ b/src/components/TabsTransfer.tsx
@@ -150,6 +150,7 @@ export class TabsTransfer extends React.Component<TabsTransferProps> {
                     onChange={onChange}
                     option2value={option2value}
                     onDeferLoad={onDeferLoad}
+                    defaultSelectedIndex={option.defaultSelectedIndex}
                   />
                 ) : (
                   <ListCheckboxes