diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.html b/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.html
index 6a030b37..dbabfff6 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.html
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.html
@@ -19,6 +19,7 @@
         <a href="#" ng-click="click($event)" collapse="{{collpaseall == 1}}" style="font-size: 16px;word-break: break-word;">
           &nbsp;{{entry.app}}
           <span class="fa arrow"></span>
+          <span class="arrow">({{entry.heathCount}}/{{entry.machines.length}})</span>
         </a>
 
         <!--<ul class="nav nav-second-level" collapse="{{entry.active}}" style="display: none;">-->
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.js
index ce1a9030..55f63548 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/directives/sidebar/sidebar.js
@@ -21,11 +21,22 @@ angular.module('sentinelDashboardApp')
           function (data) {
             if (data.code === 0) {
               let initHashApp = $location.path().split('/')[3];
+              let currTime = moment(new Date()).utc().add(-1000*60*5).format('YYYY-MM-DDTHH:mm:ss')
               $scope.apps = data.data;
-              $scope.apps.forEach(function (item) {
+              $scope.apps = $scope.apps.map(function (item) {
                 if (item.app === initHashApp) {
                   item.active = true;
                 }
+                var heathCount = 0;
+                for (var i in item.machines) {
+                  if (item.machines[i].timestamp>currTime) {
+                    heathCount++;
+                  }
+                }
+                item.heathCount = heathCount;
+                if (heathCount>0) {
+                  return item;
+                }
               });
             }
           }