diff --git a/app/helpers/members_helper.rb b/app/helpers/members_helper.rb
index ecfb097e9..6c11199fb 100644
--- a/app/helpers/members_helper.rb
+++ b/app/helpers/members_helper.rb
@@ -31,6 +31,7 @@ module MembersHelper
     }
 
     s + content_tag('div', content_tag('ul', links), :class => 'pagination_new')
+
   end
 
   # add by nwb
diff --git a/app/views/members/autocomplete.js.erb b/app/views/members/autocomplete.js.erb
index e7a52f7f3..5ef01c04d 100644
--- a/app/views/members/autocomplete.js.erb
+++ b/app/views/members/autocomplete.js.erb
@@ -3,3 +3,14 @@ $('#principals_for_new_member').html('<%= escape_javascript(render_principals_fo
  <% elsif @course%>
  $('#principals_for_new_member').html('<%= escape_javascript(render_principals_for_new_course_members(@course)) %>');
  <%end%>
+ var collection=$("#principals_for_new_member").children("#principals").children("label");
+ collection.css("text-overflow","ellipsis");
+ collection.css("white-space","nowrap");
+ collection.css("width","200px");
+ collection.css("overflow","hidden");
+ for(i=0;i<collection.length;i++){    //增加悬浮显示
+     var label=collection[i];
+     var text=$(label).text();
+     $(label).attr("title",text);
+ }
+
diff --git a/app/views/projects/settings/_members.html.erb b/app/views/projects/settings/_members.html.erb
index ab046bcb6..c1d63d03b 100644
--- a/app/views/projects/settings/_members.html.erb
+++ b/app/views/projects/settings/_members.html.erb
@@ -130,3 +130,17 @@
       <% end %>
   <% end %>
 </div>
+<script type="text/javascript">
+    $(document).ready(function () {
+        var collection=$("#principals_for_new_member").children("#principals").children("label");
+        collection.css("text-overflow","ellipsis");
+        collection.css("white-space","nowrap");
+        collection.css("width","200px");
+        collection.css("overflow","hidden");
+        for(i=0;i<collection.length;i++){    //增加悬浮显示
+            var label=collection[i];
+            var text=$(label).text();
+            $(label).attr("title",text);
+        }
+    });
+</script>
\ No newline at end of file