diff --git a/public/static/admin.js b/public/static/admin.js
index d42172d8d..970ff7a29 100644
--- a/public/static/admin.js
+++ b/public/static/admin.js
@@ -604,7 +604,7 @@ $(function () {
     };
 
     /*! 上传多张图片 */
-    $.fn.uploadMultipleImage = function () {
+    $.fn.uploadMultipleImage = function (num) {
         return this.each(function () {
             if ($(this).data('inited')) return true; else $(this).data('inited', true);
             var $in = $(this), $bt = $('<a data-file="mul" class="uploadimage"></a>'), imgs = this.value ? this.value.split('|') : []
@@ -621,8 +621,10 @@ $(function () {
                         imgs = [], $bt.prevAll('.uploadimage').map(function () {
                             imgs.push($(this).attr('data-tips-image'));
                         });
+                        if(num>0 && imgs.length<num) $bt.show();
                         imgs.reverse(), $in.val(imgs.join('|'));
                     }), $bt.before($image);
+                    if(num>0&&imgs.length>=num) $bt.hide();
                 });
             }
         });