diff --git a/CHANGELOG.zh_CN.md b/CHANGELOG.zh_CN.md
index d00767f5..d613ac58 100644
--- a/CHANGELOG.zh_CN.md
+++ b/CHANGELOG.zh_CN.md
@@ -9,6 +9,10 @@
 
 - 更新 antdv 到`2.0.0-rc.1`
 
+### 🐛 Bug Fixes
+
+- 修复表单 inputNumber 校验错误
+
 ## 2.0.0-rc.10 (2020-11-13)
 
 ### ✨ Refactor
diff --git a/src/components/Form/src/FormItem.tsx b/src/components/Form/src/FormItem.tsx
index 16acb76d..c013d0b8 100644
--- a/src/components/Form/src/FormItem.tsx
+++ b/src/components/Form/src/FormItem.tsx
@@ -122,10 +122,10 @@ export default defineComponent({
       } = props.schema;
 
       if (isFunction(dynamicRules)) {
-        return dynamicRules(unref(getValuesRef));
+        return dynamicRules(unref(getValuesRef)) as ValidationRule[];
       }
 
-      let rules: ValidationRule[] = cloneDeep(defRules);
+      let rules: ValidationRule[] = cloneDeep(defRules) as ValidationRule[];
 
       if ((!rules || rules.length === 0) && required) {
         rules = [{ required }];
@@ -157,6 +157,9 @@ export default defineComponent({
           if (component.includes('RangePicker')) {
             rule.type = 'array';
           }
+          if (component.includes('InputNumber')) {
+            rule.type = 'number';
+          }
         }
       }
 
diff --git a/src/hooks/web/useMessage.tsx b/src/hooks/web/useMessage.tsx
index a2380ec1..02bc4267 100644
--- a/src/hooks/web/useMessage.tsx
+++ b/src/hooks/web/useMessage.tsx
@@ -1,5 +1,4 @@
 import type { ModalFunc, ModalFuncProps } from 'ant-design-vue/lib/modal/Modal';
-import type { MessageApi } from 'ant-design-vue/lib/message';
 
 import { Modal, message as Message, notification } from 'ant-design-vue';
 import { InfoCircleFilled, CheckCircleFilled, CloseCircleFilled } from '@ant-design/icons-vue';
@@ -100,7 +99,7 @@ notification.config({
  */
 export function useMessage() {
   return {
-    createMessage: Message as MessageApi,
+    createMessage: Message,
     notification: notification as NotifyApi,
     createConfirm: createConfirm,
     createSuccessModal,
diff --git a/src/views/demo/form/index.vue b/src/views/demo/form/index.vue
index 28001818..ae473fcd 100644
--- a/src/views/demo/form/index.vue
+++ b/src/views/demo/form/index.vue
@@ -208,6 +208,15 @@
         ],
       },
     },
+    {
+      field: 'field20',
+      component: 'InputNumber',
+      label: '字段20',
+      required: true,
+      colProps: {
+        span: 8,
+      },
+    },
   ];
 
   export default defineComponent({