diff --git a/public/react/src/common/course/WordsBtn.js b/public/react/src/common/course/WordsBtn.js
index 58b000338..85a85cfb6 100644
--- a/public/react/src/common/course/WordsBtn.js
+++ b/public/react/src/common/course/WordsBtn.js
@@ -8,15 +8,21 @@ class WordsBtn extends Component {
   }
 
   render() {
-    let{to, href,targets}=this.props
+    let{to, href,targets, style2 }=this.props
     return(
       <React.Fragment>
         {
           to==undefined&&targets==undefined ?
-          <a href={href || "javascript:void(0)"} onClick={this.props.onClick} className={"btn "+`${map[this.props.style]} ${this.props.className}`}>{this.props.children}</a>:
-						targets!=undefined? <a href={to} target="_blank" className={"btn "+`${map[this.props.style]} ${this.props.className}`}>{this.props.children}</a>
+          <a href={href || "javascript:void(0)"} onClick={this.props.onClick} className={"btn "+`${map[this.props.style]} ${this.props.className}`}
+              style={style2}
+          >{this.props.children}</a>:
+						targets!=undefined? <a href={to} target="_blank" className={"btn "+`${map[this.props.style]} ${this.props.className}`}
+              style={style2}
+            >{this.props.children}</a>
           :
-          <Link to={to} className={"btn "+`${map[this.props.style]} ${this.props.className}`}>{this.props.children}</Link>
+          <Link to={to} className={"btn "+`${map[this.props.style]} ${this.props.className}`}
+            style={style2}
+          >{this.props.children}</Link>
         }
       </React.Fragment>
     )
diff --git a/public/react/src/modules/courses/members/teacherList.js b/public/react/src/modules/courses/members/teacherList.js
index d3f4521b3..1dd8cd3f9 100644
--- a/public/react/src/modules/courses/members/teacherList.js
+++ b/public/react/src/modules/courses/members/teacherList.js
@@ -117,7 +117,7 @@ function buildColumns(that) {
   const hasGraduationModule = that.hasGraduationModule()
   if (hasGraduationModule && showSorter) {
     columns.push({
-      title: '答辩组',
+      title: '所在答辩组',
       // width: 90,
       sorter: showSorter,
       sortDirections: sortDirections,
@@ -141,6 +141,9 @@ function buildColumns(that) {
       width: 150,
       align:'center',
       render: (text, record) => {
+        const isAdmin = record.role == ROLE_ADMIN
+        const isTeacher = record.role == ROLE_TEACHER
+        const isAssitant = record.role == ROLE_TEACHER_ASSISTANT
         if (record.application_id) {
           return (
             <span>
@@ -151,19 +154,19 @@ function buildColumns(that) {
         } else {
           return (
             <React.Fragment>
-              <WordsBtn>删除</WordsBtn>              
+              <WordsBtn style2={{ marginRight: '12px' }} onClick={() => that.onDelete(record)} style={'grey'}>删除</WordsBtn>              
               <Popconfirm 
-                placement="right"
+                placement="bottom"
                 icon={null}
                 title={
                   <React.Fragment>
-                    <Checkbox >管理员</Checkbox>
-                    <Checkbox >助教</Checkbox>
+                    <Checkbox disable={isAdmin}>管理员</Checkbox>
+                    <Checkbox disable={isAdmin}>助教</Checkbox>
                     <Checkbox >学生</Checkbox>
                   </React.Fragment>
                 }
               >
-                <WordsBtn>修改角色</WordsBtn>
+                <WordsBtn style={'blue'}>修改角色</WordsBtn>
               </Popconfirm>
             </React.Fragment>