diff --git a/app/views/projects/settings/_new_members.html.erb b/app/views/projects/settings/_new_members.html.erb
index d91cd0475..e82062e9b 100644
--- a/app/views/projects/settings/_new_members.html.erb
+++ b/app/views/projects/settings/_new_members.html.erb
@@ -46,7 +46,7 @@
                     ) do |f| %>
               <% roles.each do |role| %>
                 <ul style="text-align: left;" >
-                  <%= check_box_tag 'membership[role_ids][]', role.id, member.roles.include?(role),
+                  <%= radio_button_tag 'membership[role_ids][]', role.id, member.roles.include?(role),
                                     :disabled => member.member_roles.detect { |mr| mr.role_id == role.id && !mr.inherited_from.nil? } %>
                  <!--编辑时候显示成员，中英文切换后面需从数据库的角度优化-->
                   <% if User.current.language == "zh" %>
@@ -64,11 +64,11 @@
                 <!--<br/>-->
               <% end %>
                     <%= hidden_field_tag 'membership[role_ids][]', '' %>
-                    <div>
-                      <a href="javascript:void(0)" class="member_btn" onclick="$('#member-<%= member.id%>-roles-form').submit();" style="margin-right: 10px;">
+                    <div class="pt5">
+                      <a href="javascript:void(0)" class="project_member_btn" onclick="$('#member-<%= member.id%>-roles-form').submit();" style="margin-right: 10px;">
                         <%= l(:button_change)%>
                       </a>
-                      <a href="javascript:void(0)" class="member_btn" onclick="$('#member-<%= member.id%>-roles-form').hide();$(this).parent().parent().parent().parent().height(30)">
+                      <a href="javascript:void(0)" class="project_member_btn" onclick="$('#member-<%= member.id%>-roles-form').hide();$(this).parent().parent().parent().parent().height(30)">
                         <%= l(:button_cancel)%>
                       </a>
                     </div>
@@ -138,7 +138,7 @@
               </li>
               <% roles.each do |role| %>
                   <li>
-                    <%= check_box_tag 'membership[role_ids][]', role.id %>
+                    <%= radio_button_tag 'membership[role_ids][]', role.id %>
                     <% if User.current.language == "zh" %>
                         <% if role.id == 3 %>
                             <label >管理人员</label>
@@ -154,7 +154,7 @@
               <% end %>
             </ul>
             <div class="cl mb10"></div>
-            <a href="javascript:void(0)" class="member_btn" onclick="$(this).parent().parent().submit();">
+            <a href="javascript:void(0)" class="project_member_btn_right" onclick="$(this).parent().parent().submit();">
               新增成员
             </a>
           </div>
diff --git a/public/stylesheets/project.css b/public/stylesheets/project.css
index e044f9d51..27bb66bbb 100644
--- a/public/stylesheets/project.css
+++ b/public/stylesheets/project.css
@@ -545,6 +545,8 @@ blockquote {
 .member_search_btn{ background:#15bccf; color:#fff; text-align: center; width:40px; height:22px;border:1px solid #15bccf; padding-top:2px; cursor:pointer;}
 .member_search_btn:hover{ background:#0da1b2; border:1px solid #0da1b2;}
 a.member_btn{ padding:5px; background:#15bccf; color:#fff;}
+a.project_member_btn{ padding:1px 5px; background:#15bccf; color:#fff;}
+a.project_member_btn_right{ padding:2px 5px; background:#15bccf; color:#fff;}
 a:hover.member_btn{ background:#329cbd;}
 .pro_table{ text-align:center; color:#333; margin-bottom:20px;}
 .pro_table tr td{ height:30px;}
diff --git a/public/stylesheets/public.css b/public/stylesheets/public.css
index dc2fecbba..90651f362 100644
--- a/public/stylesheets/public.css
+++ b/public/stylesheets/public.css
@@ -114,6 +114,7 @@ h4{ font-size:14px; color:#3b3b3b;}
 .mb10{ margin-bottom:10px !important;}
 .mb20{ margin-bottom:20px;}
 .pl15{ padding-left:15px;}
+.pt5{ padding-top:5px;}
 .w20{ width:20px;}
 .w40{width: 40px;}
 .w45{ width: 45px;}