diff --git a/package.json b/package.json
index acf930a..18af09e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kne/react-file",
-  "version": "0.1.32",
+  "version": "0.1.33",
   "description": "提供了文件上传，文件预览，文件批量管理等功能",
   "syntax": {
     "esmodules": true
diff --git a/src/components/FilePreview/typeFormat.js b/src/components/FilePreview/typeFormat.js
index a1f4c33..b6d07e5 100644
--- a/src/components/FilePreview/typeFormat.js
+++ b/src/components/FilePreview/typeFormat.js
@@ -9,6 +9,9 @@ import VideoPreview from './VideoPreview';
 import MarkdownPreview from './MarkdownPreview';
 
 const typeFormat = url => {
+  if (typeof url !== 'string') {
+    return 'unknown';
+  }
   const path = (url || '').split('?')[0];
   const _path = path.toLowerCase();
   if (/.txt$/.test(_path)) {