diff --git a/templates/nav_bar_header.html b/templates/nav_bar_header.html
index 9c8334bbd..ef4bdc07a 100644
--- a/templates/nav_bar_header.html
+++ b/templates/nav_bar_header.html
@@ -52,24 +52,24 @@
                 {% endif %}
             </ul>
         </li>
-        <li class="dropdown open">
-            <a class="dropdown-toggle count-info" data-toggle="dropdown" href="#" aria-expanded="true">
-                <i class="fa fa-bell"></i>  <span class="label label-primary">0</span>
-            </a>
-            <ul class="dropdown-menu dropdown-alerts">
-                <li>
-                    <a href="mailbox.html">
-                        <div>
-                            <i class="fa fa-envelope"></i> <strong>(暂无告警)</strong>
+{#        <li class="dropdown open">#}
+{#            <a class="dropdown-toggle count-info" data-toggle="dropdown" href="#" aria-expanded="true">#}
+{#                <i class="fa fa-bell"></i>  <span class="label label-primary">0</span>#}
+{#            </a>#}
+{#            <ul class="dropdown-menu dropdown-alerts">#}
+{#                <li>#}
+{#                    <a href="mailbox.html">#}
+{#                        <div>#}
+{#                            <i class="fa fa-envelope"></i> <strong>(暂无告警)</strong>#}
 {#                            <i class="fa fa-envelope fa-fw"></i> You have 16 messages#}
 {#                            <span class="pull-right text-muted small">4 minutes ago</span>#}
-                        </div>
-                    </a>
-                </li>
+{#                        </div>#}
+{#                    </a>#}
+{#                </li>#}
 {#                <li class="divider"></li>#}
-
-            </ul>
-        </li>
+{##}
+{#            </ul>#}
+{#        </li>#}
         <li>
             <a href="/logout/">
                 <i class="fa fa-sign-out"></i> Log out