diff --git a/packages/core/client/src/schema-component/antd/action/Action.Modal.tsx b/packages/core/client/src/schema-component/antd/action/Action.Modal.tsx
index a04dc02fd..d67444c85 100644
--- a/packages/core/client/src/schema-component/antd/action/Action.Modal.tsx
+++ b/packages/core/client/src/schema-component/antd/action/Action.Modal.tsx
@@ -15,7 +15,7 @@ const openSizeWidthMap = new Map<OpenSize, string>([
 export const ActionModal: ComposedActionDrawer<ModalProps> = observer(
   (props) => {
     const { footerNodeName = 'Action.Modal.Footer', width, ...others } = props;
-    const { visible, setVisible, openSize = 'large', modalProps } = useActionContext();
+    const { visible, setVisible, openSize = 'middle', modalProps } = useActionContext();
     const actualWidth = width ?? openSizeWidthMap.get(openSize);
     const schema = useFieldSchema();
     const field = useField();
diff --git a/packages/core/client/src/schema-component/antd/form-item/FormItem.Settings.tsx b/packages/core/client/src/schema-component/antd/form-item/FormItem.Settings.tsx
index f3f9acae7..a26cc7e22 100644
--- a/packages/core/client/src/schema-component/antd/form-item/FormItem.Settings.tsx
+++ b/packages/core/client/src/schema-component/antd/form-item/FormItem.Settings.tsx
@@ -427,9 +427,7 @@ export const formItemSettings = new SchemaSettings({
             { label: t('Middle'), value: 'middle' },
             { label: t('Large'), value: 'large' },
           ],
-          value:
-            fieldSchema?.['x-component-props']?.['openSize'] ??
-            (fieldSchema?.['x-component-props']?.['openMode'] == 'modal' ? 'large' : 'middle'),
+          value: fieldSchema?.['x-component-props']?.['openSize'] ?? 'middle',
           onChange: (value) => {
             field.componentProps.openSize = value;
             fieldSchema['x-component-props'] = field.componentProps;