diff --git a/components/tree-select/interface.tsx b/components/tree-select/interface.tsx
index 15129a97af..45b33cd9dc 100644
--- a/components/tree-select/interface.tsx
+++ b/components/tree-select/interface.tsx
@@ -4,7 +4,7 @@ import { AbstractSelectProps } from '../select';
 export type TreeNode = TreeNodeNormal | TreeNodeSimpleMode;
 
 export interface TreeNodeNormal {
-  value: string;
+  value: string | number;
   /**
    * @deprecated Please use `title` instead.
    */
@@ -30,8 +30,8 @@ export interface TreeDataSimpleMode {
 }
 
 export interface TreeSelectProps extends AbstractSelectProps {
-  value?: string | Array<any>;
-  defaultValue?: string | Array<any>;
+  value?: string | number | Array<any>;
+  defaultValue?: string | number | Array<any>;
   multiple?: boolean;
   maxTagCount?: number;
   onSelect?: (value: any) => void;