diff --git a/src/views/plugin/workflow/mixins/ex-form.js b/src/views/plugin/workflow/mixins/ex-form.js
index 5157047..a0b1c4c 100644
--- a/src/views/plugin/workflow/mixins/ex-form.js
+++ b/src/views/plugin/workflow/mixins/ex-form.js
@@ -463,7 +463,8 @@ export default {
     // 上传组件预览
     handleUploadPreview(file, column, done) {
       const { url } = file
-      const { video, img } = this.$typeList
+      const video = /\.(swf|avi|flv|mpg|rm|mov|wav|asf|3gp|mkv|rmvb|ogg|mp4)/
+      const img = /\.(gif|jpg|jpeg|png|GIF|JPG|PNG)/
       if (video.test(url) || img.test(url)) done()
       else window.open(url)
     },