diff --git a/admin/controllers/Upload.php b/admin/controllers/Upload.php
index 386d4c98..6407f717 100755
--- a/admin/controllers/Upload.php
+++ b/admin/controllers/Upload.php
@@ -54,7 +54,7 @@ class Upload extends CI_Controller
         $data['uptype'] = $uptype ? $uptype : 'qiniu';
         $data['mimes'] = $this->file_mime($data['types']);
         $data['source'] = $source ? $source : '';
-        $data['field'] = $field ? $field : 'file';
+        $data['field'] = $field ? $field : '';
         $this->load->view('uploadpdf', $data);
     }
 
diff --git a/admin/views/uploadpdf.php b/admin/views/uploadpdf.php
index 38d58f6c..26a0a365 100644
--- a/admin/views/uploadpdf.php
+++ b/admin/views/uploadpdf.php
@@ -46,12 +46,14 @@
         var file_title = ret.file_title || file.file_title || file.md5;
         var field = '<?=$field?>';
         $('#' + file.id).attr('data-md5', file.md5).attr('data-src', url).attr('data-value', file_url).attr('data-title', file_title);
-        top.$('[name="<?=$field?>"]').map(function () {
-            img_value = file_url;
-            top.$(this).attr('data-srcs', url).attr('data-md5', file.md5).val(img_value).trigger('change');
-        });
-        var index = top.layer.getFrameIndex(window.name);
-        top.layer.close(index);
+        if(field!='file'){
+            top.$('[name="<?=$field?>"]').map(function () {
+                img_value = file_url;
+                top.$(this).attr('data-srcs', url).attr('data-md5', file.md5).val(img_value).trigger('change');
+            });
+            var index = top.layer.getFrameIndex(window.name);
+            top.layer.close(index);
+        }
     }
 
     function confirmSelected() {