diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 505a3dd9a..a12fa37e4 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -552,10 +552,10 @@ class UsersController < ApplicationController
   end
 
   def show
-    @page = (params[:page] || -1).to_i + 1
+    @page = params[:page] ? params[:page].to_i + 1 : 0
     @type = params[:type]
-    user_project_ids = "(" + @user.projects.visible.map{|project| project.id}.join(",") + ")"
-    user_course_ids = "(" + @user.courses.visible.map{|course| course.id}.join(",") + ")"
+    user_project_ids = @user.projects.visible.empty? ? "(-1)" : "(" + @user.projects.visible.map{|project| project.id}.join(",") + ")"
+    user_course_ids = @user.courses.visible.empty? ? "(-1)" : "(" + @user.courses.visible.map{|course| course.id}.join(",") + ")"
     if @type
       case @type
         when "course_homework"
@@ -575,7 +575,10 @@ class UsersController < ApplicationController
       @user_activities = UserActivity.where("(container_type = 'Project' and container_id in #{user_project_ids} and act_type in #{project_types}) or (container_type = 'Course' and container_id in #{user_course_ids}) and act_type in #{course_types}").order('created_at desc').limit(10).offset(@page * 10)
     end
     # @user_activities = paginateHelper @user_activities,500
-    render :layout=>'new_base_user'
+    respond_to do |format|
+      format.js
+      format.html {render :layout => 'new_base_user'}
+    end
   end
 
   def show_old
diff --git a/app/views/users/_user_activities.html.erb b/app/views/users/_user_activities.html.erb
new file mode 100644
index 000000000..60992c384
--- /dev/null
+++ b/app/views/users/_user_activities.html.erb
@@ -0,0 +1,44 @@
+<% user_activities.each do |user_activity|
+  unless user_activities.nil? %>
+        <% act= user_activity.act unless user_activity.act_type == "ProjectCreateInfo" %>
+        <% case user_activity.container_type.to_s %>
+        <% when 'Course' %>
+            <% if act  %>
+                <% case user_activity.act_type.to_s %>
+                <% when 'HomeworkCommon' %>
+                    <%= render :partial => 'course_homework', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <% when 'News' %>
+                    <%= render :partial => 'course_news', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <% when 'Message'%>
+                    <%= render :partial => 'course_message', :locals => {:activity => act,:user_activity =>user_activity} %>
+                    <%# when 'Course'%>
+                    <%#= render :partial => 'course_create', :locals => {:activity => act,:user_activity =>user_activity} %>
+                    <%# when 'Attachment' %>
+                    <%#= render :partial => 'course_attachment', :locals => {:activity => act, :user_activity => user_activity} %>
+                    <%# when 'JournalsForMessage' %>
+                    <%#= render :partial => 'course_journalsformessage', :locals => {:activity => act, :user_activity => user_activity} %>
+                    <%# when 'Poll' %>
+                    <%#= render :partial => 'course_poll', :locals => {:activity => act, :user_activity => user_activity} %>
+                <% end %>
+            <% end %>
+        <% when 'Project' %>
+            <% case user_activity.act_type.to_s %>
+            <% when 'Issue' %>
+                <%= render :partial => 'project_issue', :locals => {:activity => act,:user_activity =>user_activity} %>
+            <% when 'Message' %>
+                <%= render :partial => 'project_message', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <%# when 'Journal' %>
+                <%#= render :partial => 'project_journal', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <%# when 'News' %>
+                <%#= render :partial => 'project_news', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <%# when 'Document' %>
+                <%#= render :partial => 'project_document', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <%# when 'Attachment' %>
+                <%#= render :partial => 'project_attachment', :locals => {:activity => act,:user_activity =>user_activity} %>
+                <%# when 'ProjectCreateInfo' %>
+                <%#= render :partial => 'project_create', :locals => {:activity => act,:user_activity =>user_activity} %>
+            <% end %>
+        <% end %>
+    <% end %>
+<% end %>
+<input type="hidden" value="<%= page%>" id="show_more_activities" />
\ No newline at end of file
diff --git a/app/views/users/show.html.erb b/app/views/users/show.html.erb
index 5189017ba..e650130ff 100644
--- a/app/views/users/show.html.erb
+++ b/app/views/users/show.html.erb
@@ -1,3 +1,18 @@
+<script type="text/javascript">
+    var scrollHandler = function(){
+        if ($(window).scrollTop() == $(document).height() - $(window).height()) {
+            $.get(
+                    '<%= user_activities_path(@user.id)%>',
+                    { page : $("#show_more_activities").val()},
+                    function (data) {
+
+                    }
+            );
+        }
+    };
+    $(window).scroll(scrollHandler);
+</script>
+
 <div class="resources">
   <div class="homepageRightBanner">
     <div class="NewsBannerName">最新动态</div>
@@ -30,49 +45,5 @@
     </ul>
   </div>
 </div>
-<% @user_activities.each do |user_activity|
-  unless @user_activities.nil? %>
-  <% act= user_activity.act unless user_activity.act_type == "ProjectCreateInfo" %>
-  <% case user_activity.container_type.to_s %>
-    <% when 'Course' %>
-      <% if act  %>
-      <% case user_activity.act_type.to_s %>
-        <% when 'HomeworkCommon' %>
-            <%= render :partial => 'course_homework', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <% when 'News' %>
-            <%= render :partial => 'course_news', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <% when 'Message'%>
-            <%= render :partial => 'course_message', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'Course'%>
-            <%#= render :partial => 'course_create', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'Attachment' %>
-            <%#= render :partial => 'course_attachment', :locals => {:activity => act, :user_activity => user_activity} %>
-        <%# when 'JournalsForMessage' %>
-            <%#= render :partial => 'course_journalsformessage', :locals => {:activity => act, :user_activity => user_activity} %>
-        <%# when 'Poll' %>
-            <%#= render :partial => 'course_poll', :locals => {:activity => act, :user_activity => user_activity} %>
-       <% end %>
-       <% end %>
-    <% when 'Project' %>
-      <% case user_activity.act_type.to_s %>
-        <% when 'Issue' %>
-            <%= render :partial => 'project_issue', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <% when 'Message' %>
-            <%= render :partial => 'project_message', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'Journal' %>
-            <%#= render :partial => 'project_journal', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'News' %>
-            <%#= render :partial => 'project_news', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'Document' %>
-            <%#= render :partial => 'project_document', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'Attachment' %>
-            <%#= render :partial => 'project_attachment', :locals => {:activity => act,:user_activity =>user_activity} %>
-        <%# when 'ProjectCreateInfo' %>
-            <%#= render :partial => 'project_create', :locals => {:activity => act,:user_activity =>user_activity} %>
-      <% end %>
-  <% end %>
-<% end %>
-<% end %>
-<div class="pagination">
 
-</div>
\ No newline at end of file
+<%= render :partial => 'users/user_activities', :locals => {:user_activities => @user_activities,:page => @page} %>
\ No newline at end of file
diff --git a/app/views/users/show.js.erb b/app/views/users/show.js.erb
new file mode 100644
index 000000000..0ce84cf0e
--- /dev/null
+++ b/app/views/users/show.js.erb
@@ -0,0 +1,4 @@
+$("#show_more_activities").replaceWith("<%= escape_javascript( render :partial =>  'users/user_activities',:locals => {:user_activities => @user_activities, :page => @page} )%>");
+<% if @user_activities.count < 10%>
+$(window).off("scroll", scrollHandler);
+<% end%>