diff --git a/module/mr/lang/en.php b/module/mr/lang/en.php
index 981fba87a3..6f0481758e 100644
--- a/module/mr/lang/en.php
+++ b/module/mr/lang/en.php
@@ -29,6 +29,7 @@ $lang->mr->approval = 'Approval';
 $lang->mr->approve  = 'Approve';
 $lang->mr->reject   = 'Reject';
 $lang->mr->close    = 'Close';
+$lang->mr->reopen   = 'Reopen';
 
 $lang->mr->approvalResult  = 'Approval result';
 $lang->mr->approvalResultList  = array();
diff --git a/module/mr/lang/zh-cn.php b/module/mr/lang/zh-cn.php
index 359efd5d42..1c6f42ee60 100644
--- a/module/mr/lang/zh-cn.php
+++ b/module/mr/lang/zh-cn.php
@@ -29,6 +29,7 @@ $lang->mr->approval = '评审';
 $lang->mr->approve  = '通过';
 $lang->mr->reject   = '拒绝';
 $lang->mr->close    = '关闭';
+$lang->mr->reopen   = '重新打开';
 
 $lang->mr->approvalResult  = '评审意见';
 $lang->mr->approvalResultList  = array();
diff --git a/module/mr/lang/zh-tw.php b/module/mr/lang/zh-tw.php
index fd8e461842..abcbb01875 100644
--- a/module/mr/lang/zh-tw.php
+++ b/module/mr/lang/zh-tw.php
@@ -29,6 +29,7 @@ $lang->mr->approval = '評審';
 $lang->mr->approve  = '通過';
 $lang->mr->reject   = '拒絕';
 $lang->mr->close    = '關閉';
+$lang->mr->reopen   = '重新打開';
 
 $lang->mr->approvalResult  = '評審意見';
 $lang->mr->approvalResultList  = array();
diff --git a/module/mr/model.php b/module/mr/model.php
index f8dd1d001b..76776302ef 100644
--- a/module/mr/model.php
+++ b/module/mr/model.php
@@ -445,6 +445,38 @@ class mrModel extends model
         return json_decode(commonModel::http($url, null, array(CURLOPT_CUSTOMREQUEST => 'DELETE')));
     }
 
+     /**
+     * Close MR by API.
+     *
+     * @docs   https://docs.gitlab.com/ee/api/merge_requests.html#update-mr
+     * @param  int    $gitlabID
+     * @param  int    $projectID
+     * @param  int    $MRID
+     * @access public
+     * @return object
+     */
+    public function apiCloseMR($gitlabID, $projectID, $MRID)
+    {
+        $url = sprintf($this->gitlab->getApiRoot($gitlabID), "/projects/$projectID/merge_requests/$MRID") . '&state_event=close';
+        return json_decode(commonModel::http($url, null, array(CURLOPT_CUSTOMREQUEST => 'PUT')));
+    }
+
+    /**
+     * Reopen MR by API.
+     *
+     * @docs   https://docs.gitlab.com/ee/api/merge_requests.html#update-mr
+     * @param  int    $gitlabID
+     * @param  int    $projectID
+     * @param  int    $MRID
+     * @access public
+     * @return object
+     */
+    public function apiReopenMR($gitlabID, $projectID, $MRID)
+    {
+        $url = sprintf($this->gitlab->getApiRoot($gitlabID), "/projects/$projectID/merge_requests/$MRID") . '&state_event=reopen';
+        return json_decode(commonModel::http($url, null, array(CURLOPT_CUSTOMREQUEST => 'PUT')));
+    }
+
     /**
      * Accept MR by API.
      *
@@ -653,4 +685,40 @@ class mrModel extends model
         }
         return array('result' => 'fail', 'message' => $this->lang->mr->repeatedOperation, 'locate' => helper::createLink('mr', 'view', "mr={$MR->id}"));
     }
+
+    /**
+     * Close this MR.
+     *
+     * @param  mixed $MR
+     * @return void
+     */
+    public function close($MR)
+    {
+        $this->loadModel('action');
+        $actionID = $this->action->create('mr', $MR->id, 'close');
+        $rawMR = $this->apiCloseMR($MR->gitlabID, $MR->targetProject, $MR->mriid);
+        $changes = common::createChanges($MR, $rawMR);
+        $this->action->logHistory($actionID, $changes);
+        if(isset($rawMR->state) and $rawMR->state == 'closed') return array('result' => 'success', 'message' => $this->lang->saveSuccess, 'locate' => helper::createLink('mr', 'view', "mr={$MR->id}"));
+        return array('result' => 'fail', 'message' => $this->lang->fail, 'locate' => helper::createLink('mr', 'view', "mr={$MR->id}"));
+    }
+
+    /**
+     * Reopen this MR.
+     *
+     * @param  mixed $MR
+     * @return void
+     */
+    public function reopen($MR)
+    {
+        $this->loadModel('action');
+        $actionID = $this->action->create('mr', $MR->id, 'reopen');
+        $rawMR = $this->apiReopenMR($MR->gitlabID, $MR->targetProject, $MR->mriid);
+        $changes = common::createChanges($MR, $rawMR);
+        $this->action->logHistory($actionID, $changes);
+        if(isset($rawMR->state) and $rawMR->state == 'opened') return array('result' => 'success', 'message' => $this->lang->saveSuccess, 'locate' => helper::createLink('mr', 'view', "mr={$MR->id}"));
+        return array('result' => 'fail', 'message' => $this->lang->fail, 'locate' => helper::createLink('mr', 'view', "mr={$MR->id}"));
+    }
+
 }
+
diff --git a/module/mr/view/view.html.php b/module/mr/view/view.html.php
index cec441fd2f..3a5d4ba74d 100644
--- a/module/mr/view/view.html.php
+++ b/module/mr/view/view.html.php
@@ -48,13 +48,14 @@
       <div class='main-actions'>
         <div class="btn-toolbar">
           <?php common::printBack(inlink('browse', '')); ?>
-          <?php if ($rawMR->state == 'opened' and !$rawMR->has_conflicts) : ?>
-            <?php echo html::a(inlink('accept', "mr=$MR->id"), '<i class="icon icon-flow"></i> ' . $lang->mr->acceptMR, '', "id='mergeButton' class='btn'"); ?>
+          <?php if ($rawMR->state == 'opened' and !$rawMR->has_conflicts) echo html::a(inlink('accept', "mr=$MR->id"), '<i class="icon icon-flow"></i> ' . $lang->mr->acceptMR, '', "id='mergeButton' class='btn'"); ?>
+          <?php if ($rawMR->state == 'opened'): ?>
             <?php echo html::a(inlink('approval', "mr=$MR->id&action=approve&onlybody=yes"), '<i class="icon icon-ok"></i> ' . $lang->mr->approve, '', "id='mergeButton' class='btn'"); ?>
             <?php echo html::a(inlink('approval', "mr=$MR->id&action=reject&onlybody=yes"), '<i class="icon icon-bug"></i> ' . $lang->mr->reject, '', "id='mergeButton' class='btn'"); ?>
             <?php echo html::a(inlink('close', "mr=$MR->id"), '<i class="icon icon-close"></i> ' . $lang->mr->close, '', "id='mergeButton' class='btn'"); ?>
             <?php echo html::a(inlink('edit', "mr=$MR->id"), '<i class="icon icon-edit"></i> ' . str_replace($lang->mr->common, '', $lang->mr->edit), '', "id='mergeButton' class='btn'"); ?>
           <?php endif; ?>
+          <?php if ($rawMR->state == 'closed') echo html::a(inlink('reopen', "mr=$MR->id"), '<i class="icon icon-restart"></i> ' . $lang->mr->reopen, '', "id='mergeButton' class='btn'"); ?>
           <?php echo html::a(inlink('delete', "mr=$MR->id"), '<i class="icon icon-trash"></i> ' . str_replace($lang->mr->common, '', $lang->mr->delete), '', "id='mergeButton' class='btn'"); ?>
         </div>
       </div>