diff --git a/components/upload/Upload.jsx b/components/upload/Upload.jsx
index 6f2aeda01..f365c930f 100644
--- a/components/upload/Upload.jsx
+++ b/components/upload/Upload.jsx
@@ -40,7 +40,7 @@ export default {
   },
   watch: {
     fileList(val) {
-      this.sFileList = val;
+      this.sFileList = val || [];
     },
   },
   beforeDestroy() {