diff --git a/db/zentao.sql b/db/zentao.sql
index 3992f75fde..05843b6eee 100644
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -831,6 +831,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (1, 'my', 'testCase'),
 (1, 'my', 'testTask'),
 (1, 'my', 'todo'),
+(1, 'my', 'unbind'),
 (1, 'product', 'batchEdit'),
 (1, 'product', 'browse'),
 (1, 'product', 'close'),
@@ -1080,6 +1081,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (2, 'my', 'story'),
 (2, 'my', 'task'),
 (2, 'my', 'todo'),
+(2, 'my', 'unbind'),
 (2, 'product', 'browse'),
 (2, 'product', 'doc'),
 (2, 'product', 'dynamic'),
@@ -1238,6 +1240,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (3, 'my', 'testCase'),
 (3, 'my', 'testTask'),
 (3, 'my', 'todo'),
+(3, 'my', 'unbind'),
 (3, 'product', 'browse'),
 (3, 'product', 'doc'),
 (3, 'product', 'dynamic'),
@@ -1437,6 +1440,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (4, 'my', 'testCase'),
 (4, 'my', 'testTask'),
 (4, 'my', 'todo'),
+(4, 'my', 'unbind'),
 (4, 'product', 'browse'),
 (4, 'product', 'doc'),
 (4, 'product', 'dynamic'),
@@ -1636,6 +1640,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (5, 'my', 'testCase'),
 (5, 'my', 'testTask'),
 (5, 'my', 'todo'),
+(5, 'my', 'unbind'),
 (5, 'product', 'batchEdit'),
 (5, 'product', 'browse'),
 (5, 'product', 'close'),
@@ -1865,6 +1870,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (6, 'my', 'testCase'),
 (6, 'my', 'testTask'),
 (6, 'my', 'todo'),
+(6, 'my', 'unbind'),
 (6, 'product', 'browse'),
 (6, 'product', 'doc'),
 (6, 'product', 'dynamic'),
@@ -2062,6 +2068,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (7, 'my', 'testCase'),
 (7, 'my', 'testTask'),
 (7, 'my', 'todo'),
+(7, 'my', 'unbind'),
 (7, 'product', 'batchEdit'),
 (7, 'product', 'browse'),
 (7, 'product', 'close'),
@@ -2269,6 +2276,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (8, 'my', 'testCase'),
 (8, 'my', 'testTask'),
 (8, 'my', 'todo'),
+(8, 'my', 'unbind'),
 (8, 'product', 'browse'),
 (8, 'product', 'doc'),
 (8, 'product', 'dynamic'),
@@ -2456,6 +2464,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (9, 'my', 'testCase'),
 (9, 'my', 'testTask'),
 (9, 'my', 'todo'),
+(9, 'my', 'unbind'),
 (9, 'product', 'browse'),
 (9, 'product', 'doc'),
 (9, 'product', 'dynamic'),
@@ -2576,6 +2585,7 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (10, 'my', 'profile'),
 (10, 'my', 'task'),
 (10, 'my', 'todo'),
+(10, 'my', 'unbind'),
 (10, 'product', 'browse'),
 (10, 'product', 'doc'),
 (10, 'product', 'dynamic'),
diff --git a/module/group/lang/resource.php b/module/group/lang/resource.php
index 05edee063f..dd73d38836 100644
--- a/module/group/lang/resource.php
+++ b/module/group/lang/resource.php
@@ -78,6 +78,7 @@ $lang->resource->my->profile        = 'profile';
 $lang->resource->my->dynamic        = 'dynamic';
 $lang->resource->my->editProfile    = 'editProfile';
 $lang->resource->my->changePassword = 'changePassword';
+$lang->resource->my->unbind         = 'unbind';
 
 $lang->my->methodOrder[0]  = 'index';
 $lang->my->methodOrder[5]  = 'todo';
@@ -91,6 +92,7 @@ $lang->my->methodOrder[40] = 'profile';
 $lang->my->methodOrder[45] = 'dynamic';
 $lang->my->methodOrder[50] = 'editProfile';
 $lang->my->methodOrder[55] = 'changePassword';
+$lang->my->methodOrder[60] = 'unbind';
 
 /* Todo. */
 $lang->resource->todo = new stdclass();
@@ -1107,3 +1109,4 @@ $lang->changelog['7.4'][] = 'release-changeStatus';
 $lang->changelog['7.4'][] = 'user-unbind';
 $lang->changelog['7.4'][] = 'branch-manage';
 $lang->changelog['7.4'][] = 'branch-delete';
+$lang->changelog['7.4'][] = 'my-unbind';
diff --git a/module/my/control.php b/module/my/control.php
index a1f5e59d2a..5663dc1fba 100644
--- a/module/my/control.php
+++ b/module/my/control.php
@@ -465,4 +465,25 @@ class my extends control
         $this->display();
     }
 
+    /**
+     * Unbind ranzhi 
+     * 
+     * @param  string $confirm 
+     * @access public
+     * @return void
+     */
+    public function unbind($confirm = 'no')
+    {
+        $this->loadModel('user');
+        if($confirm == 'no')
+        {
+            die(js::confirm($this->lang->user->confirmUnbind, $this->createLink('my', 'unbind', "confirm=yes")));
+        }
+        else
+        {
+            $this->user->unbind($this->app->user->account);
+            die(js::locate($this->createLink('my', 'profile'), 'parent'));
+        }
+    }
+
 }
diff --git a/module/my/lang/en.php b/module/my/lang/en.php
index ef2e65b21a..f5ade64a55 100644
--- a/module/my/lang/en.php
+++ b/module/my/lang/en.php
@@ -15,6 +15,7 @@ $lang->my->profile        = 'Profile';
 $lang->my->dynamic        = 'Dynamic';
 $lang->my->editProfile    = 'Edit profile';
 $lang->my->changePassword = 'Change password';
+$lang->my->unbind         = 'Unbind ranzhi';
 
 $lang->my->taskMenu = new stdclass();
 $lang->my->taskMenu->assignedToMe = 'To me';
diff --git a/module/my/lang/zh-cn.php b/module/my/lang/zh-cn.php
index 44fe7dc5ed..17171e88e7 100644
--- a/module/my/lang/zh-cn.php
+++ b/module/my/lang/zh-cn.php
@@ -15,6 +15,7 @@ $lang->my->profile        = '我的档案';
 $lang->my->dynamic        = '我的动态';
 $lang->my->editProfile    = '修改档案';
 $lang->my->changePassword = '修改密码';
+$lang->my->unbind         = '解除然之绑定';
 
 $lang->my->taskMenu = new stdclass();
 $lang->my->taskMenu->assignedToMe = '指派给我';
diff --git a/module/my/view/profile.html.php b/module/my/view/profile.html.php
index a54bcbbeee..65d9a20ae0 100644
--- a/module/my/view/profile.html.php
+++ b/module/my/view/profile.html.php
@@ -114,6 +114,15 @@
       <th><?php echo $lang->user->zipcode;?></th>
       <td><?php echo $user->zipcode;?></td>
     </tr>
+    <?php if($user->ranzhi):?>
+    <tr>
+      <th><?php echo $lang->user->ranzhi;?></th>
+      <td>
+        <?php echo $user->ranzhi . ' ';?>
+        <?php if(common::hasPriv('my', 'unbind')) echo html::a($this->createLink('my', 'unbind'), "<i class='icon-unlink'></i>", 'hiddenwin', "class='bin-icon' title='{$lang->user->unbind}'");?>
+      </td>
+    </tr>
+    <?php endif;?>
   </table>
 </div>
 <?php include '../../common/view/footer.html.php';?>
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 7135d80425..d5176caa2e 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -127,6 +127,7 @@ class upgradeModel extends model
                 $this->adjustOrder7_3();
             case '7_3':
                 $this->execSQL($this->getUpgradeFile('7.3'));
+                $this->adjustPriv7_4();
 
             default: if(!$this->isError()) $this->setting->updateVersion($this->config->version);
         }
@@ -961,6 +962,27 @@ class upgradeModel extends model
         return true;
     }
 
+    /**
+     * Adjust priv for 7.4 
+     * 
+     * @access public
+     * @return void
+     */
+    public function adjustPriv7_4()
+    {
+        $groups = $this->dao->select('id')->from(TABLE_GROUP)->where('name')->eq('guest')->fetchAll();
+        foreach($groups as $groupID)
+        {
+            $groupPriv = new stdclass();
+            $groupPriv->group = $groupID;
+            $groupPriv->module = 'my';
+            $groupPriv->method = 'unbind';
+            $this->dao->replae(TABLE_GROUPPRIV)->data($data)->exec();
+        }
+
+        return true;
+    }
+
     /**
      * Judge any error occers.
      *