diff --git a/src/components/Table/src/types/table.ts b/src/components/Table/src/types/table.ts
index ad1624976..24b177b2a 100644
--- a/src/components/Table/src/types/table.ts
+++ b/src/components/Table/src/types/table.ts
@@ -87,7 +87,7 @@ export interface TableActionType {
   getSelectRows: <T = Recordable>() => T[];
   clearSelectedRowKeys: () => void;
   expandAll: () => void;
-  expandRows: (keys: string[]) => void;
+  expandRows: (keys: string[] | number[]) => void;
   collapseAll: () => void;
   scrollTo: (pos: string) => void; // pos: id | "top" | "bottom"
   getSelectRowKeys: () => string[];