diff --git a/db/update16.0.beta1.sql b/db/update16.0.beta1.sql
index 0ad3e88553..102e159f6b 100644
--- a/db/update16.0.beta1.sql
+++ b/db/update16.0.beta1.sql
@@ -7,3 +7,5 @@ ALTER TABLE `zt_task` ADD `mr` mediumint(8) unsigned NOT NULL AFTER `repo`;
 ALTER TABLE `zt_bug` ADD `mr` mediumint(8) unsigned NOT NULL AFTER `repo`;
 
 UPDATE `zt_grouppriv` SET `method`='addReview' where `module`='mr' and `method`='addBug';
+
+ALTER TABLE `zt_mr` ADD `removeSourceBranch` ENUM('0','1') NOT NULL DEFAULT '0' AFTER `compileStatus`;
diff --git a/module/mr/lang/en.php b/module/mr/lang/en.php
index 5db8f01833..12a2d4cbb4 100644
--- a/module/mr/lang/en.php
+++ b/module/mr/lang/en.php
@@ -56,8 +56,9 @@ $lang->mr->approvalResultList = array();
 $lang->mr->approvalResultList['approve'] = 'Approve';
 $lang->mr->approvalResultList['reject']  = 'Reject';
 
-$lang->mr->needApproved = 'This MR should be approved before merge';
-$lang->mr->needCI       = 'This MR should be passed CI before merge';
+$lang->mr->needApproved       = 'This MR should be approved before merge';
+$lang->mr->needCI             = 'This MR should be passed CI before merge';
+$lang->mr->removeSourceBranch = 'Delete source branch after merge';
 
 $lang->mr->repeatedOperation = 'Do not repeat operations';
 
diff --git a/module/mr/lang/zh-cn.php b/module/mr/lang/zh-cn.php
index 6ba9fcf536..c1fa29837c 100644
--- a/module/mr/lang/zh-cn.php
+++ b/module/mr/lang/zh-cn.php
@@ -56,8 +56,9 @@ $lang->mr->approvalResultList = array();
 $lang->mr->approvalResultList['approve'] = '通过';
 $lang->mr->approvalResultList['reject']  = '拒绝';
 
-$lang->mr->needApproved = '需要通过评审才能合并';
-$lang->mr->needCI       = '需要通过构建才能合并';
+$lang->mr->needApproved       = '需要通过评审才能合并';
+$lang->mr->needCI             = '需要通过构建才能合并';
+$lang->mr->removeSourceBranch = '合并后删除源分支';
 
 $lang->mr->repeatedOperation = '请勿重复操作';
 
diff --git a/module/mr/model.php b/module/mr/model.php
index 76ed950a2f..d934f051b7 100644
--- a/module/mr/model.php
+++ b/module/mr/model.php
@@ -87,6 +87,7 @@ class mrModel extends model
         $MR = fixer::input('post')
             ->setDefault('jobID', 0)
             ->setDefault('repoID', 0)
+            ->setDefault('removeSourceBranch','0')
             ->setDefault('needCI', 0)
             ->add('createdBy', $this->app->user->account)
             ->add('createdDate', helper::now())
@@ -114,11 +115,12 @@ class mrModel extends model
         $MRID = $this->dao->lastInsertId();
 
         $MRObject = new stdclass;
-        $MRObject->target_project_id = $MR->targetProject;
-        $MRObject->source_branch     = $MR->sourceBranch;
-        $MRObject->target_branch     = $MR->targetBranch;
-        $MRObject->title             = $MR->title;
-        $MRObject->description       = $MR->description;
+        $MRObject->target_project_id    = $MR->targetProject;
+        $MRObject->source_branch        = $MR->sourceBranch;
+        $MRObject->target_branch        = $MR->targetBranch;
+        $MRObject->title                = $MR->title;
+        $MRObject->description          = $MR->description;
+        $MRObject->remove_source_branch = $MR->removeSourceBranch == '1' ? true : false;
         if($MR->assignee)
         {
             $gitlabAssignee = $this->gitlab->getUserIDByZentaoAccount($this->post->gitlabID, $MR->assignee);
@@ -187,6 +189,7 @@ class mrModel extends model
         $MR = fixer::input('post')
             ->setDefault('jobID', 0)
             ->setDefault('repoID', 0)
+            ->setDefault('removeSourceBranch','0')
             ->setDefault('needCI', 0)
             ->setDefault('editedBy', $this->app->user->account)
             ->setDefault('editedDate', helper::now())
@@ -212,9 +215,10 @@ class mrModel extends model
 
         /* Update MR in GitLab. */
         $newMR = new stdclass;
-        $newMR->title         = $MR->title;
-        $newMR->description   = $MR->description;
-        $newMR->target_branch = $MR->targetBranch;
+        $newMR->title                = $MR->title;
+        $newMR->description          = $MR->description;
+        $newMR->target_branch        = $MR->targetBranch;
+        $newMR->remove_source_branch = $MR->removeSourceBranch == '1' ? true : false;
         if($MR->assignee)
         {
             $gitlabAssignee = $this->gitlab->getUserIDByZentaoAccount($oldMR->gitlabID, $MR->assignee);
diff --git a/module/mr/view/create.html.php b/module/mr/view/create.html.php
index 71b862c73b..c05f0cc6a5 100644
--- a/module/mr/view/create.html.php
+++ b/module/mr/view/create.html.php
@@ -55,6 +55,15 @@
             <th><?php echo $lang->devops->repo;?></th>
             <td colspan='1' class='required'><?php echo html::select('repoID', array(''), '', "class='form-control chosen'");?></td>
           </tr>
+          <tr>
+            <th><?php echo $lang->mr->removeSourceBranch;?></th>
+            <td colspan='1'>
+              <div class="checkbox-primary">
+                <input type="checkbox" name="removeSourceBranch" value="1" id="removeSourceBranch">
+                <label for="removeSourceBranch"></label>
+              </div>
+            </td>
+          </tr>
           <tr>
             <th><?php echo $lang->mr->needCI;?></th>
             <td colspan='1'>
diff --git a/module/mr/view/edit.html.php b/module/mr/view/edit.html.php
index 4489aeb320..deeafe821f 100644
--- a/module/mr/view/edit.html.php
+++ b/module/mr/view/edit.html.php
@@ -69,6 +69,16 @@
             <th><?php echo $lang->devops->repo;?></th>
             <td colspan='1' class='required'><?php echo html::select('repoID', $repoList, $MR->repoID, "class='form-control chosen'");?></td>
           </tr>
+          <tr>
+            <th><?php echo $lang->mr->removeSourceBranch;?></th>
+            <td colspan='1'>
+              <div class="checkbox-primary">
+                <?php $checked = $MR->removeSourceBranch== '1' ? 'checked' : '' ?>
+                <input type="checkbox" <?php echo $checked;?> name="removeSourceBranch" value="1" id="removeSourceBranch">
+                <label for="removeSourceBranch"></label>
+              </div>
+            </td>
+          </tr>
           <tr>
             <th><?php echo $lang->mr->needCI;?></th>
             <td colspan='1'>