diff --git a/packages/fineui/src/core/controller/controller.broadcast.js b/packages/fineui/src/core/controller/controller.broadcast.js
index 3f1eb3035..0ce6406b6 100644
--- a/packages/fineui/src/core/controller/controller.broadcast.js
+++ b/packages/fineui/src/core/controller/controller.broadcast.js
@@ -16,13 +16,13 @@ export class BroadcastController extends Controller {
             this._broadcasts[name] = [];
         }
         this._broadcasts[name].push(fn);
-        
+
         return () => this.remove(name, fn);
     }
 
     send(name) {
         const args = [].slice.call(arguments, 1);
-        each(this._broadcasts[name], (i, fn) => fn(...args));
+        each(this._broadcasts[name]?.slice?.(), (i, fn) => fn(...args));
     }
 
     remove(name, fn) {
@@ -34,7 +34,7 @@ export class BroadcastController extends Controller {
         } else {
             delete this._broadcasts[name];
         }
-        
+
         return this;
     }
 }