diff --git a/public/react/src/modules/courses/signin/css/Signinstatistics.css b/public/react/src/modules/courses/signin/css/Signinstatistics.css
index 060793bc6..388f0ad28 100644
--- a/public/react/src/modules/courses/signin/css/Signinstatistics.css
+++ b/public/react/src/modules/courses/signin/css/Signinstatistics.css
@@ -103,6 +103,7 @@
     text-align: right;
     margin-right: 20px;
     line-height: 32px;
+    height: 32px;
 }
 
 #form_in_modal_group_ids .ant-select-selection{
diff --git a/public/react/src/modules/courses/signin/teacher/Teachers_signin.js b/public/react/src/modules/courses/signin/teacher/Teachers_signin.js
index ae2507887..bce0a4237 100644
--- a/public/react/src/modules/courses/signin/teacher/Teachers_signin.js
+++ b/public/react/src/modules/courses/signin/teacher/Teachers_signin.js
@@ -353,10 +353,10 @@ class Students_signin extends Component{
 										{
 											isAdmin===true?
 												<TabPane tab="签到统计" key="3">
-													<Signinstatistics
+													{defaultActiveKey&&defaultActiveKey==="3"?<Signinstatistics
 														{...this.props}
 														{...this.state}
-													/>
+													/>:""}
 												</TabPane>
 												:
 												""