diff --git a/admin/file-upload-js.php b/admin/file-upload-js.php
index 035e098c..d7a363f2 100644
--- a/admin/file-upload-js.php
+++ b/admin/file-upload-js.php
@@ -27,6 +27,25 @@ $(document).ready(function() {
         loading = $('<img src="<?php $options->adminUrl('img/ajax-loader.gif'); ?>" style="display:none" />')
             .appendTo(document.body);
 
+    function updateAttacmentNumber () {
+        var btn = $('#tab-files-btn'),
+            balloon = $('.balloon', btn),
+            count = $('#file-list li').length;
+
+        if (count > 0) {
+            if (!balloon.length) {
+                btn.html($.trim(btn.html()) + ' ');
+                balloon = $('<span class="balloon"></span>').appendTo(btn);
+            }
+
+            balloon.html(count);
+        } else if (0 == count && balloon.length > 0) {
+            balloon.remove();
+        }
+    }
+
+    updateAttacmentNumber();
+
     function fileUploadStart (file, id) {
         $('<li id="' + id + '" class="loading">'
             + file + '</li>').prependTo('#file-list');
@@ -45,12 +64,14 @@ $(document).ready(function() {
             
         attachInsertEvent(li);
         attachDeleteEvent(li);
+        updateAttacmentNumber();
     }
 
-    $('.upload-file').fileUpload({
-        url         :   '<?php $options->index('/action/upload' 
-            . (isset($fileParentContent) ? '?cid=' . $fileParentContent->cid : '')); ?>',
-        types       :   <?php
+    $('#tab-files').bind('init', function () {
+        $('.upload-file').fileUpload({
+            url         :   '<?php $options->index('/action/upload' 
+                . (isset($fileParentContent) ? '?cid=' . $fileParentContent->cid : '')); ?>',
+            types       :   <?php
     $attachmenttypes = $options->allowedattachmenttypes;
     $attachmenttypescount = count($attachmenttypes);
     $types = array();
@@ -61,13 +82,14 @@ $(document).ready(function() {
 
     echo json_encode($types);
 ?>,
-        typesError  :   '<?php _e('文件 %s 的类型不被支持'); ?>',
-        onUpload    :   fileUploadStart,
-        onError     :   function (id) {
-            $('#' + id).remove();
-            alert(errorWord);
-        },
-        onComplete  :   fileUploadComplete
+            typesError  :   '<?php _e('文件 %s 的类型不被支持'); ?>',
+            onUpload    :   fileUploadStart,
+            onError     :   function (id) {
+                $('#' + id).remove();
+                alert(errorWord);
+            },
+            onComplete  :   fileUploadComplete
+        });
     });
 
     $('#upload-panel').filedrop({
@@ -178,6 +200,7 @@ $(document).ready(function() {
                     function () {
                         $(el).fadeOut(function () {
                             $(this).remove();
+                            updateAttacmentNumber();
                         });
                     });
             }
diff --git a/admin/write-js.php b/admin/write-js.php
index fef470fd..da0a935a 100644
--- a/admin/write-js.php
+++ b/admin/write-js.php
@@ -186,12 +186,19 @@ $(document).ready(function() {
     });
 
     // 控制附件和参数的转换
+    var fileUploadInit = false;
     $("#edit-secondary .typecho-option-tabs li").click(function() {
         $("#edit-secondary .typecho-option-tabs li").removeClass('active');
         $(this).addClass("active");
         $(".tab-content").hide();
-        var selected_tab = $(this).find("a").attr("href");
-        $(selected_tab).show();
+        var selected_tab = $(this).find("a").attr("href"),
+            selected_el = $(selected_tab).show();
+
+        if (!fileUploadInit) {
+            selected_el.trigger('init');
+            fileUploadInit = true;
+        }
+
         return false;
     });
 
diff --git a/admin/write-page.php b/admin/write-page.php
index 4a6f7cb1..f260728e 100644
--- a/admin/write-page.php
+++ b/admin/write-page.php
@@ -52,8 +52,8 @@ Typecho_Widget::widget('Widget_Contents_Page_Edit')->to($page);
                 </div>
                 <div id="edit-secondary" class="col-mb-12 col-tb-3" role="complementary">
                     <ul class="typecho-option-tabs clearfix">
-                        <li class="active w-50"><a href="#tab-advance">更多</a></li>
-                        <li class="w-50"><a href="#tab-files">附件</a></li>
+                        <li class="active w-50"><a href="#tab-advance"><?php _e('选项'); ?></a></li>
+                        <li class="w-50"><a href="#tab-files" id="tab-files-btn"><?php _e('附件'); ?></a></li>
                     </ul>
 
                     <div id="tab-advance" class="tab-content">
diff --git a/admin/write-post.php b/admin/write-post.php
index 63716014..bb6dc7d6 100644
--- a/admin/write-post.php
+++ b/admin/write-post.php
@@ -65,8 +65,8 @@ Typecho_Widget::widget('Widget_Contents_Post_Edit')->to($post);
 
                 <div id="edit-secondary" class="col-mb-12 col-tb-3" role="complementary">
                     <ul class="typecho-option-tabs clearfix">
-                        <li class="active w-50"><a href="#tab-advance">选项</a></li>
-                        <li class="w-50"><a href="#tab-files">附件</a></li>
+                        <li class="active w-50"><a href="#tab-advance"><?php _e('选项'); ?></a></li>
+                        <li class="w-50"><a href="#tab-files" id="tab-files-btn"><?php _e('附件'); ?></a></li>
                     </ul>