diff --git a/packages/vue/src/form-item/src/index.ts b/packages/vue/src/form-item/src/index.ts
index e538c324e0..2c48669db7 100644
--- a/packages/vue/src/form-item/src/index.ts
+++ b/packages/vue/src/form-item/src/index.ts
@@ -14,7 +14,7 @@ export const formItemProps = {
   },
   appendToBody: {
     type: Boolean,
-    default: false
+    default: undefined
   },
   error: {
     type: String,