diff --git a/components/form/FormItem.tsx b/components/form/FormItem.tsx
index e237aa98a..c0405b04c 100644
--- a/components/form/FormItem.tsx
+++ b/components/form/FormItem.tsx
@@ -84,8 +84,8 @@ export const formItemProps = {
   hasFeedback: PropTypes.looseBool.def(false),
   colon: PropTypes.looseBool,
   labelAlign: PropTypes.oneOf(tuple('left', 'right')),
-  prop: { type: [String, Number, Array] as PropType<string | number | string[] | number[]> },
-  name: { type: [String, Number, Array] as PropType<string | number | string[] | number[]> },
+  prop: { type: [String, Number, Array] as PropType<string | number | Array<string | number>> },
+  name: { type: [String, Number, Array] as PropType<string | number | Array<string | number>> },
   rules: PropTypes.oneOfType([Array, Object]),
   autoLink: PropTypes.looseBool.def(true),
   required: PropTypes.looseBool,
diff --git a/components/form/context.ts b/components/form/context.ts
index 35edc91fb..ce4d0e25c 100644
--- a/components/form/context.ts
+++ b/components/form/context.ts
@@ -20,7 +20,7 @@ export interface FormContextProps {
   validateTrigger?: ComputedRef<string | string[]>;
   rules?: ComputedRef<{ [k: string]: ValidationRule[] | ValidationRule }>;
   onValidate: (
-    name: string | number | string[] | number[],
+    name: string | number | Array<string | number>,
     status: boolean,
     errors: string[] | null,
   ) => void;