diff --git a/packages/design/src/index.ts b/packages/design/src/index.ts
index 55ffbc8c..21da4b41 100644
--- a/packages/design/src/index.ts
+++ b/packages/design/src/index.ts
@@ -125,7 +125,7 @@ export default {
       tMagicMessageBox.close = options.messageBox?.close;
     }
 
-    if (options.loading) {
+    if (options.loading && !app.directive('loading')) {
       app.directive('loading', options.loading);
     }