diff --git a/module/testtask/control.php b/module/testtask/control.php
index 1461b904c9..6164760290 100644
--- a/module/testtask/control.php
+++ b/module/testtask/control.php
@@ -655,7 +655,7 @@ class testtask extends control
         $this->view->position[] = $this->lang->testtask->common;
         $this->view->position[] = $this->lang->testtask->linkCase;
 
-        $testTask = $this->testtask->getRelatedTestTasks($productID,$taskID);
+        $testTask = $this->testtask->getRelatedTestTasks($productID, $param);
 
         /* Get cases. */
         $cases = $this->testtask->getLinkableCases($productID, $task, $taskID, $type, $param, $pager);
diff --git a/module/testtask/lang/zh-cn.php b/module/testtask/lang/zh-cn.php
index c4271ac95c..5e4127b86f 100644
--- a/module/testtask/lang/zh-cn.php
+++ b/module/testtask/lang/zh-cn.php
@@ -74,7 +74,7 @@ $lang->testtask->priList[2] = '2';
 $lang->testtask->priList[4] = '4';
 
 $lang->testtask->unlinkedCases = '未关联';
-$lang->testtask->linkByVersion = '按版本关联';
+$lang->testtask->linkByVersion = '按版本复制';
 $lang->testtask->linkByStory   = '按需求关联';
 $lang->testtask->linkByBug     = '按Bug关联';
 $lang->testtask->linkBySuite   = '按套件关联';
diff --git a/module/testtask/model.php b/module/testtask/model.php
index f2bdf5aac0..bb01874172 100644
--- a/module/testtask/model.php
+++ b/module/testtask/model.php
@@ -322,16 +322,16 @@ class testtaskModel extends model
      * Get linkeable cases by test task.
      * 
      * @param  string $testTask
+     * @param  array  $linkedCases
      * @param  object $pager 
      * @access public
      * @return array
      */
     public function getLinkableCasesByTestTask($testTask, $linkedCases, $pager)
     {
-        $runList  = $this->dao->select("`case`")->from(TABLE_TESTRUN)->where('task')->eq($testTask)->andWhere('id')->notIN($linkedCases)->fetchPairs('case');
+        $caseList  = $this->dao->select("`case`")->from(TABLE_TESTRUN)->where('task')->eq($testTask)->andWhere('id')->notin($linkedCases)->fetchPairs('case');
         
-        $caseList = $this->dao->select("*")->from(TABLE_CASE)->where('id')->in($runList)->page($pager)->fetchAll();
-        return $caseList;
+        return $this->dao->select("*")->from(TABLE_CASE)->where('id')->in($caseList)->page($pager)->fetchAll();
     }
 
     /**
@@ -342,9 +342,17 @@ class testtaskModel extends model
      * @access public
      * @return array
      */
-    public function getRelatedTestTasks($productID,$taskID)
+    public function getRelatedTestTasks($productID, $testTaskID)
     {
-        return $this->dao->select('id, name')->from(TABLE_TESTTASK)->where("product = '$productID'")->orderBy('id desc')->fetchPairs('id', 'name');
+        $beginDate = $this->dao->select('begin')->from(TABLE_TESTTASK)->where('id')->eq($testTaskID)->fetch('begin');
+
+        return $this->dao->select('id, name')->from(TABLE_TESTTASK)
+            ->where('product')->eq($productID)
+            ->beginIF($beginDate)->andWhere('begin')->le($beginDate)->fi()
+            ->andWhere('deleted')->eq('0')
+            ->andWhere('id')->notin($testTaskID)
+            ->orderBy('begin desc')
+            ->fetchPairs('id', 'name');
     }
 
     /**
@@ -719,7 +727,7 @@ class testtaskModel extends model
         {
             $runs = $this->dao->select('id, `case`')->from(TABLE_TESTRUN)
                 ->where('`case`')->in($caseIdList)
-                ->beginIF($taskID)->andWhere('task')->eq($taskID)
+                ->beginIF($taskID)->andWhere('task')->eq($taskID)->fi()
                 ->fetchPairs('case', 'id');
         }
 
diff --git a/module/testtask/view/browse.html.php b/module/testtask/view/browse.html.php
index 9a87a79e5a..1fcc72fa00 100644
--- a/module/testtask/view/browse.html.php
+++ b/module/testtask/view/browse.html.php
@@ -15,7 +15,7 @@
 <div id="featurebar">
   <ul class="nav">
     <li id='waitTab'><?php echo html::a(inlink('browse', "productID=$productID&branch=$branch&type=wait"), $lang->testtask->wait);?></li>
-    <li id='testingTab'><?php echo html::a(inlink('browse', "productID=$productID&branch=$branch&type=activate"), $lang->testtask->testing);?></li>
+    <li id='doingTab'><?php echo html::a(inlink('browse', "productID=$productID&branch=$branch&type=doing"), $lang->testtask->testing);?></li>
     <li id='blockedTab'><?php echo html::a(inlink('browse', "productID=$productID&branch=$branch&type=blocked"), $lang->testtask->blockedA);?></li>
     <li id='doneTab'><?php echo html::a(inlink('browse', "productID=$productID&branch=$branch&type=done"), $lang->testtask->done);?></li>
   </ul>
diff --git a/module/testtask/view/caseheader.html.php b/module/testtask/view/caseheader.html.php
index 417c0a54cd..a1f3ba4f44 100644
--- a/module/testtask/view/caseheader.html.php
+++ b/module/testtask/view/caseheader.html.php
@@ -48,7 +48,7 @@
   <div class='actions'>
     <?php
     echo "<div class='btn-group'>";
-    common::printIcon('testtask', 'linkCase', "taskID=$task->id", '', 'button', 'link');
+    common::printIcon('testtask', 'linkCase', "taskID=$task->id&type=all&param=$taskID", '', 'button', 'link');
     common::printIcon('testcase', 'export', "productID=$productID&orderBy=`case`_desc&taskID=$task->id", '', 'button', '', '', 'iframe export');
     echo '</div>';
     echo "<div class='btn-group'>";
diff --git a/module/testtask/view/linkcase.html.php b/module/testtask/view/linkcase.html.php
index 211303d768..ccefeb7ac9 100644
--- a/module/testtask/view/linkcase.html.php
+++ b/module/testtask/view/linkcase.html.php
@@ -46,8 +46,10 @@
 
     $lang->testtask->linkCase = $lang->testtask->linkByStory;
     common::printIcon('testtask', 'linkCase', "taskID=$taskID&type=bystory", '', 'button', 'link');
+
+    //Temporary hiding, add 'hidden'. 暂时隐藏
     $lang->testtask->linkCase = $lang->testtask->linkByBug;
-    common::printIcon('testtask', 'linkCase', "taskID=$taskID&type=bybug", '', 'button', 'link');
+    common::printIcon('testtask', 'linkCase', "taskID=$taskID&type=bybug", '', 'button', 'link', '', 'hidden');
 
     echo '</div>';
     echo "<div class='btn-group'>";