diff --git a/src/modules/upload.js b/src/modules/upload.js
index 21bab6ef..68fb69c3 100644
--- a/src/modules/upload.js
+++ b/src/modules/upload.js
@@ -52,6 +52,7 @@ layui.define(['lay','layer'], function(exports){
   var ELEM_IFRAME = 'layui-upload-iframe';
   var ELEM_CHOOSE = 'layui-upload-choose';
   var ELEM_DRAG = 'layui-upload-drag';
+  var UPLOADING = 'UPLOADING';
   
   // 构造器
   var Class = function(options){
@@ -218,16 +219,37 @@ layui.define(['lay','layer'], function(exports){
       var request = function(sets){
         var formData = new FormData();
 
+        // 删除正在上传中的文件队列
+        var removeUploaded = function(index, file) {
+          if (file[UPLOADING]) {
+            delete items[index];
+            return true;
+          }
+        };
+
         // 追加额外的参数
         layui.each(options.data, function(key, value){
           value = typeof value === 'function' ? value() : value;
           formData.append(key, value);
         });
 
-        // 添加 file 到表单域
-        sets.unified ? layui.each(items, function(index, file){
-          formData.append(options.field, file);
-        }) : formData.append(options.field, sets.file);
+        /*
+         *添加 file 到表单域
+         */
+
+        // 是否统一上传
+        if (sets.unified) {
+          layui.each(items, function(index, file){
+            if (removeUploaded(index, file)) return;
+            file[UPLOADING] = true;
+            formData.append(options.field, file);
+          });
+        } else { // 逐一上传
+          if (removeUploaded(sets.index, sets.file)) return;
+          formData.append(options.field, sets.file);
+        }
+
+        sets.file[UPLOADING] = true; // 上传中的标记
 
         // ajax 参数
         var opts = {