diff --git a/module/webapp/js/common.js b/module/webapp/js/common.js
index 7bf0dc2daa..8848b425fa 100644
--- a/module/webapp/js/common.js
+++ b/module/webapp/js/common.js
@@ -44,9 +44,16 @@ function addView(webappID)
   $.get(createLink('webapp', 'ajaxAddView', 'webappID=' + webappID));
 }
 
+function customSize(value)
+{
+    $('.customSize').hide();
+    if(value == 'custom') $('.customSize').show();
+}
+
 $(function(){
     setSize($('#target').val());
     $('#target').change(function(){setSize($(this).val())});
+    $('#size').change(function(){customSize($(this).val())});
     $('#modulemenu ul li').removeClass('active');
     if(typeof(module) != "undefined") $('#modulemenu ul li #submenu' + module).parent().addClass('active');
 })
diff --git a/module/webapp/lang/en.php b/module/webapp/lang/en.php
index 75090c1020..9c8e5d494e 100644
--- a/module/webapp/lang/en.php
+++ b/module/webapp/lang/en.php
@@ -43,6 +43,7 @@ $lang->webapp->addedBy     = 'Added By';
 $lang->webapp->addedDate   = 'Added date';
 $lang->webapp->views       = 'Views';
 $lang->webapp->packup      = 'Fold';
+$lang->webapp->custom      = 'Custom';
 
 $lang->webapp->byDownloads   = 'Most Downloads';
 $lang->webapp->byAddedTime   = 'New Add';
@@ -64,6 +65,7 @@ $lang->webapp->sizeList['1024x600'] = "1024 x 600";
 $lang->webapp->sizeList['900x600']  = "900 x 600";
 $lang->webapp->sizeList['700x600']  = "700 x 600";
 $lang->webapp->sizeList['600x500']  = "600 x 500";
+$lang->webapp->sizeList['custom']   = "Custom size";
 
 $lang->webapp->addTypeList['system'] = 'System App';
 $lang->webapp->addTypeList['custom'] = 'Custom App';
diff --git a/module/webapp/lang/zh-cn.php b/module/webapp/lang/zh-cn.php
index 3dda2eaaa3..6a94f35de8 100644
--- a/module/webapp/lang/zh-cn.php
+++ b/module/webapp/lang/zh-cn.php
@@ -43,6 +43,7 @@ $lang->webapp->addedBy     = '安装人';
 $lang->webapp->addedDate   = '安装日期';
 $lang->webapp->views       = '使用次数';
 $lang->webapp->packup      = '收起';
+$lang->webapp->custom      = '自定义';
 
 $lang->webapp->byDownloads   = '最多下载';
 $lang->webapp->byAddedTime   = '最新添加';
@@ -64,6 +65,7 @@ $lang->webapp->sizeList['1024x600'] = "1024 x 600";
 $lang->webapp->sizeList['900x600']  = "900 x 600";
 $lang->webapp->sizeList['700x600']  = "700 x 600";
 $lang->webapp->sizeList['600x500']  = "600 x 500";
+$lang->webapp->sizeList['custom']   = "自定义尺寸";
 
 $lang->webapp->addTypeList['system'] = '系统应用';
 $lang->webapp->addTypeList['custom'] = '自定义应用';
diff --git a/module/webapp/model.php b/module/webapp/model.php
index 66318adc16..09d086b5f9 100644
--- a/module/webapp/model.php
+++ b/module/webapp/model.php
@@ -253,7 +253,8 @@ class webappModel extends model
     public function update($webappID)
     {
         $webapp = $this->getLocalAppByID($webappID);
-        $data = fixer::input('post')->remove('files')->get();
+        $data = fixer::input('post')->remove('files,customWidth,customHeight')->get();
+        if($data->size == 'custom') $data->size = $this->post->customWidth . 'x' . $this->post->customHeight;
 
         $this->dao->update(TABLE_WEBAPP)->data($data)->where('id')->eq($webappID)->check('url', 'unique', "id != $webappID", false)->exec();
 
@@ -288,7 +289,8 @@ class webappModel extends model
             ->add('addType', 'custom')
             ->add('addedDate', helper::now())
             ->add('author', $this->app->user->account)
-            ->remove('files')->get();
+            ->remove('files,customWidth,customHeight')->get();
+        if($data->size == 'custom') $data->size = $this->post->customWidth . 'x' . $this->post->customHeight;
         $this->dao->insert(TABLE_WEBAPP)->data($data)
             ->autocheck()
             ->batchCheck($this->config->webapp->create->requiredFields, 'notempty')
diff --git a/module/webapp/view/create.html.php b/module/webapp/view/create.html.php
index d14921ab04..e24b2257e3 100644
--- a/module/webapp/view/create.html.php
+++ b/module/webapp/view/create.html.php
@@ -34,6 +34,10 @@
     <th align='left'><?php echo $lang->webapp->size?></th>
     <td><?php echo html::select('size', $lang->webapp->sizeList, '', "class='select-3'")?></td>
   </tr>
+  <tr class="customSize hidden">
+    <th align='left'><?php echo $lang->webapp->custom?></th>
+    <td><?php echo html::input('customWidth', '', "class='w-40px'") . ' x ' . html::input('customHeight', '', "class='w-40px'");?></td>
+  </tr>
   <tr>
     <th align='left'><?php echo $lang->webapp->abstract?></th>
     <td><?php echo html::input('abstract', '', "class='text-3' maxlength='30'")?> <span><?php echo $lang->webapp->noticeAbstract?></span></td>
diff --git a/module/webapp/view/edit.html.php b/module/webapp/view/edit.html.php
index f6d21e3b10..4be6e2c5ad 100644
--- a/module/webapp/view/edit.html.php
+++ b/module/webapp/view/edit.html.php
@@ -32,10 +32,24 @@
     <th align='left'><?php echo $lang->webapp->target?></th>
     <td><?php echo html::select('target', $lang->webapp->targetList, $webapp->target, "class='select-3'")?></td>
   </tr>
+  <?php 
+  $customWidth  = '';
+  $customHeight = '';
+  if(!array_key_exists($webapp->size, $lang->webapp->sizeList))
+  {
+      $size = $webapp->size;
+      $webapp->size = 'custom';
+      if(strpos($size, 'x') !== false) list($customWidth, $customHeight) = explode('x', $size);
+  }
+  ?>
   <tr class="size">
     <th align='left'><?php echo $lang->webapp->size?></th>
     <td><?php echo html::select('size', $lang->webapp->sizeList, $webapp->size, "class='select-3'")?></td>
   </tr>
+  <tr class="customSize <?php if($webapp->size != 'custom') echo 'hidden'?>">
+    <th align='left'><?php echo $lang->webapp->custom?></th>
+    <td><?php echo html::input('customWidth', $customWidth, "class='w-40px'") . ' x ' . html::input('customHeight', $customHeight, "class='w-40px'");?></td>
+  </tr>
   <tr>
     <th align='left'><?php echo $lang->webapp->abstract?></th>
     <td><?php echo html::input('abstract', $webapp->abstract, "class='text-3' maxlength='30'")?> <span><?php echo $lang->webapp->noticeAbstract?></span></td>
diff --git a/module/webapp/view/view.html.php b/module/webapp/view/view.html.php
index 42b02b9119..3b662fcfc6 100644
--- a/module/webapp/view/view.html.php
+++ b/module/webapp/view/view.html.php
@@ -39,9 +39,21 @@
     <td><?php echo $lang->webapp->targetList[$webapp->target]?></td>
   </tr>
   <?php if($webapp->target == 'popup'):?>
+  <?php
+  if(!array_key_exists($webapp->size, $lang->webapp->sizeList))
+  {
+      $size = $webapp->size;
+      $webapp->size = 'custom';
+  }
+  ?>
   <tr>
     <th class='a-right'><?php echo $lang->webapp->size?></th>
-    <td><?php echo $lang->webapp->sizeList[$webapp->size]?></td>
+    <td>
+      <?php
+      echo $lang->webapp->sizeList[$webapp->size];
+      if(isset($size)) echo ' ： ' . $size;
+      ?>
+    </td>
   </tr>
   <?php endif;?>
   <tr>