diff --git a/public/images/educoder/competitions/heikesong.jpg b/public/images/educoder/competitions/heikesong.jpg
index 8c0109413..948998f4a 100644
Binary files a/public/images/educoder/competitions/heikesong.jpg and b/public/images/educoder/competitions/heikesong.jpg differ
diff --git a/public/react/src/modules/courses/busyWork/UseBank.js b/public/react/src/modules/courses/busyWork/UseBank.js
index 1c6db302e..f72b71990 100644
--- a/public/react/src/modules/courses/busyWork/UseBank.js
+++ b/public/react/src/modules/courses/busyWork/UseBank.js
@@ -250,7 +250,7 @@ class UseBank extends Component{
           </style>:""
         }
 
-        <WordsBtn style="blue" className="mr30 font-16" onClick={()=>this.openSelectBank()}>{engNameMap[object_type]=="问卷"?"问卷选用":engNameMap[object_type]=="试卷"?"试卷选用":"题库选用"}</WordsBtn>
+				{this.props.user&&this.props.user.main_site===true?<WordsBtn style="blue" className="mr30 font-16" onClick={()=>this.openSelectBank()}>{engNameMap[object_type]=="问卷"?"问卷选用":engNameMap[object_type]=="试卷"?"试卷选用":"题库选用"}</WordsBtn>:""}
         {flag===true?<Modal
             title="题库选用"
             visible={flag}
diff --git a/public/react/src/modules/courses/busyWork/commonWork.js b/public/react/src/modules/courses/busyWork/commonWork.js
index a0f73c9ee..ce8cff558 100644
--- a/public/react/src/modules/courses/busyWork/commonWork.js
+++ b/public/react/src/modules/courses/busyWork/commonWork.js
@@ -454,9 +454,9 @@ class commonWork extends Component{
                 </li>
                 
                 { !!course_public && <li className="li_line"><a href="javascript:void(0)" onClick={this.onSetPublic} className="color-grey-9">设为公开</a></li>}
-                <li><a href="javascript:void(0)" className="color-grey-9"
+								{this.props.user&&this.props.user.main_site===true?<li><a href="javascript:void(0)" className="color-grey-9"
                   onClick={this.addToBank}
-                >加入题库</a></li>
+                >加入题库</a></li>:""}
               </div>
               {/* 设为公开 */}
               <Modals
diff --git a/public/react/src/modules/courses/exercise/Exercise.js b/public/react/src/modules/courses/exercise/Exercise.js
index afd9956f8..dec8a1cff 100644
--- a/public/react/src/modules/courses/exercise/Exercise.js
+++ b/public/react/src/modules/courses/exercise/Exercise.js
@@ -550,7 +550,7 @@ class Exercise extends Component{
                                         {
                                             course_types && course_types.course_is_public == 1 && <li className="li_line"><a className="color-grey-9" onClick={()=>this.ActionPoll("public")}>设为公开</a></li>
                                         }
-                                        <li className="li_line"><a className="color-grey-9" onClick={()=>this.ActionPoll("bank")}>加入题库</a></li>
+																			{this.props.user&&this.props.user.main_site===true?<li className="li_line"><a className="color-grey-9" onClick={()=>this.ActionPoll("bank")}>加入题库</a></li>:""}
                                     </div>
                                 </div>
 
diff --git a/public/react/src/modules/courses/poll/Poll.js b/public/react/src/modules/courses/poll/Poll.js
index 38a624275..447b454e4 100644
--- a/public/react/src/modules/courses/poll/Poll.js
+++ b/public/react/src/modules/courses/poll/Poll.js
@@ -571,7 +571,7 @@ class Poll extends Component{
                 {
                   course_types && course_types.course_is_public == 1 && <li className="li_line"><a className="color-grey-9" onClick={()=>this.ActionPoll("public")}>设为公开</a></li>
                 }
-                <li className="li_line"><a className="color-grey-9" onClick={()=>this.ActionPoll("bank")}>加入题库</a></li>
+								{this.props.user&&this.props.user.main_site===true?<li className="li_line"><a className="color-grey-9" onClick={()=>this.ActionPoll("bank")}>加入题库</a></li>:""}
               </div>
             </div>
           </div>