diff --git a/app.js b/app.js
index 2aff100..d060b53 100644
--- a/app.js
+++ b/app.js
@@ -1,5 +1,7 @@
 App({
   onShow() {
-  
+    wx.setKeepScreenOn({
+      keepScreenOn: true,
+    });
   }
 });
diff --git a/pages/meeting/index.scss b/pages/meeting/index.scss
index 88d8847..8172d58 100644
--- a/pages/meeting/index.scss
+++ b/pages/meeting/index.scss
@@ -142,6 +142,39 @@
 
     &-smallvideo {
       overflow-y: auto;
+      position: relative;
+
+      &-up {
+        position: fixed;
+        z-index: 5;
+        right: 7.4%;
+        top: 14%;
+        color: white;
+        background-color: rgba(0, 0, 0, 0.5);
+        border: 1px white solid;
+        width: 30rpx;
+        height: 20rpx;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        opacity: 0.4;
+      }
+
+      &-down {
+        position: fixed;
+        z-index: 5;
+        right: 7.4%;
+        bottom: 14%;
+        color: white;
+        background-color: rgba(0, 0, 0, 0.5);
+        border: 1px white solid;
+        width: 30rpx;
+        height: 20rpx;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        opacity: 0.4;
+      }
 
       &-box {
         height: calc(100% / 3);
diff --git a/pages/meeting/index.ts b/pages/meeting/index.ts
index 939950f..2cee59c 100644
--- a/pages/meeting/index.ts
+++ b/pages/meeting/index.ts
@@ -76,6 +76,7 @@ Page({
     currentUid: '',
     currentUser: '',
     userNumer: 0,
+    scrollTop: 0,
     noViewChatList: 0,
     applySpeakDialog: false,
     leaveDialog: false,
@@ -500,9 +501,11 @@ Page({
         })
         break;
     }
-    this.setData({
-      currentUser: roomUserList.find(row => row.uid == this.data.currentUid || row.screenShareId == this.data.currentUid)
-    })
+    if (item.user && (item.user.uid === this.data.currentUid)) {
+      this.setData({
+        currentUser: roomUserList.find(row => row.uid == this.data.currentUid || row.screenShareId == this.data.currentUid)
+      })
+    }
     this.changeAgoraDevice()
   },
   async changeFooterList(e): Promise<void> {
@@ -814,7 +817,7 @@ Page({
       })
     }
   },
-  scroll() {
+  scroll(e) {
     const query = wx.createSelectorQuery().in(this);
     query.select('#meeting-content-smallvideo').boundingClientRect()
     query.selectAll('.meeting-content-smallvideo-box').boundingClientRect()
@@ -833,4 +836,22 @@ Page({
       });
     })
   },
+  scrollUp() {
+    const query = wx.createSelectorQuery()
+    query.select('#meeting-content-smallvideo').scrollOffset((res => {
+      this.setData({
+        scrollTop: res.scrollTop - 50
+      })
+    }))
+    query.exec()
+  },
+  scrollDown() {
+    const query = wx.createSelectorQuery()
+    query.select('#meeting-content-smallvideo').scrollOffset((res => {
+      this.setData({
+        scrollTop: res.scrollTop + 50
+      })
+    }))
+    query.exec()
+  },
 })
\ No newline at end of file
diff --git a/pages/meeting/index.wxml b/pages/meeting/index.wxml
index 4c15264..344ccbc 100644
--- a/pages/meeting/index.wxml
+++ b/pages/meeting/index.wxml
@@ -29,7 +29,7 @@
         <text class="meeting-content-video-user-text">{{currentUser.userName}}</text>
       </view>
     </view>
-    <scroll-view scroll-y class="meeting-content-smallvideo" id="meeting-content-smallvideo" style="width: {{isFullscreen ? '0' :'20%'}}" bindscroll='scroll'>
+    <scroll-view scroll-y class="meeting-content-smallvideo" id="meeting-content-smallvideo" style="width: {{isFullscreen ? '0' :'20%'}}" bindscroll='scroll' scroll-top="{{scrollTop}}">
       <view class="meeting-content-smallvideo-box" id="video-{{item.uid}}" wx:for="{{roomUserList}}" data-item="{{item}}" wx:key="index" bind:tap="clickChangeVideo" wx:if="{{item.isRoom && item.isAdmin}}">
         <view class="meeting-content-smallvideo-box-view {{item.uid == currentUid  ? 'active' : ''}}">
           <view class="meeting-content-smallvideo-box-view-avatar {{item.uid == currentUid  ? 'active' : ''}}" wx:if="{{!item.enableCamera}}">
@@ -59,6 +59,12 @@
           </view>
         </view>
       </view>
+      <view class="meeting-content-smallvideo-up" bind:tap="scrollUp" wx:if="{{isAdmin>3}}">
+        <t-icon name="chevron-up" size="24rpx" data-name="chevron-up" />
+      </view>
+      <view class="meeting-content-smallvideo-down" bind:tap="scrollDown" wx:if="{{isAdmin>3}}">
+        <t-icon name="chevron-down" size="24rpx" data-name="chevron-down" />
+      </view>
     </scroll-view>
   </view>
   <view class="meeting-footer" wx:if="{{!isFullscreen}}">