diff --git a/app/helpers/welcome_helper.rb b/app/helpers/welcome_helper.rb
index f862ce30f..ff2801a53 100644
--- a/app/helpers/welcome_helper.rb
+++ b/app/helpers/welcome_helper.rb
@@ -75,13 +75,13 @@ module WelcomeHelper
     str = ' '.html_safe
     case event.event_type
     when 'news' , 'issue', 'message' , 'bid' , 'wiki-page' , 'document'
-      str << content_tag("span", "发表了") << content_tag("span", find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(event.event_title, length: 30, omission:'...'), event.event_url)
+      str << content_tag("span", "发表了") << content_tag("span", find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(event.event_title, length: 30, omission:'...'), event.event_url, :target => "_blank" )
     when 'reply' ,'Reply', 'Memo'
-      str << content_tag("span", "发表了") << content_tag("span", find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(strip_tags(event.event_description), length: 30, omission:'...'), event.event_url)
+      str << content_tag("span", "发表了") << content_tag("span", find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(strip_tags(event.event_description), length: 30, omission:'...'), event.event_url, :target => "_blank" )
     when 'attachment'
       str << content_tag('span', '上传了') << content_tag('span', find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(event.event_title, length: 30, omission:'...'), event.event_url) << link_to(('&nbsp;['.html_safe+l(:label_downloads_list).to_s << ']'), project_files_path(event.container))
     else
-      str << content_tag("span", "更新了") << content_tag("span", find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(event.event_title, length: 30, omission:'...'), event.event_url)
+      str << content_tag("span", "更新了") << content_tag("span", find_all_event_type(event)) << ':&nbsp;'.html_safe << link_to(truncate(event.event_title, length: 30, omission:'...'), event.event_url, :target => "_blank" )
     end
     str
   rescue Exception => e
@@ -92,9 +92,9 @@ module WelcomeHelper
     str = "回复("
     case event.event_type
     when "issue"
-      str << link_to(cal_issues_count(event), issue_path(event)) << ")"
+      str << link_to(cal_issues_count(event), issue_path(event), :target => "_blank" ) << ")"
     when "Memo"
-      str << link_to(cal_memos_count(event), forum_memo_path(event.forum_id,event.id)) << ")"
+      str << link_to(cal_memos_count(event), forum_memo_path(event.forum_id,event.id), :target => "_blank" ) << ")"
     else
       str = ""
     end
diff --git a/app/views/welcome/index.html.erb b/app/views/welcome/index.html.erb
index 32cb43167..2f0279578 100644
--- a/app/views/welcome/index.html.erb
+++ b/app/views/welcome/index.html.erb
@@ -97,7 +97,7 @@
 		<div class="forum-topic" style="height: 25px;">
 		  <h3 style="color: rgb(21, 188, 207);margin-left: 8px;"><strong>贴吧动态</strong></h3>
 
-		  <span style="margin-top: -30px;float: right; display: block;"><%= link_to "更多>>", forums_path %></span>
+		  <span style="margin-top: -30px;float: right; display: block;"><%= link_to "更多>>", forums_path, :target => "_blank" %></span>
 		</div>
 		
 		<div class="welcome-box-list-new">
@@ -105,14 +105,14 @@
 			<li class="message-brief-intro" style="min-height: 25px;padding-bottom:3px;">
 				<div  style="display: inline-block; width: 100%;">
 				  <span style="color:gray; display: inline-block;  margin-bottom:6px; background: url('/images/list-icon.png') no-repeat scroll ;background-position: left center;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
-				    <%= link_to topic.subject.truncate(30, omission: '...'), topic.event_url, :class => "gray" , :style => "font-size: 10pt !important;"%>
+				    <%= link_to topic.subject.truncate(30, omission: '...'), topic.event_url, :class => "gray" , :style => "font-size: 10pt !important;", :target => "_blank" %>
 				  </span>
 				<br>
 				<span style="margin-left: 24px; color: rgb(172, 174, 177); white-space: nowrap; font-size：　9pt !important;;"><%=time_tag_welcome(topic_last_time topic)%>前</span>
 				<span style="margin-left: 8px; margin-bottom: 0px; color: rgb(172, 174, 177) !important; white-space: nowrap;">
-					由&nbsp;<%= link_to topic.author ? topic.author : 'Anonymous', user_path(topic.author_id), :style => "font-size: 9pt !important; color: rgb(17, 102, 173);"%>&nbsp;发表
+					由&nbsp;<%= link_to topic.author ? topic.author : 'Anonymous', user_path(topic.author_id), :style => "font-size: 9pt !important; color: rgb(17, 102, 173);", :target => "_blank" %>&nbsp;发表
 				</span>
-				<span style="float: right; color: rgb(172, 174, 177); white-space: nowrap; font-size：　9pt !important;;">回复(<%= link_to topic.replies_count, topic.event_url %>)</span>
+				<span style="float: right; color: rgb(172, 174, 177); white-space: nowrap; font-size：　9pt !important;;">回复(<%= link_to topic.replies_count, topic.event_url, :target => "_blank"  %>)</span>
 				</div>
 			</li>
 			<% end %>
@@ -123,7 +123,7 @@
 	<div class="right" style="float: right; margin-right: 10px; height: 445px; width: 45%; ">	
 		<ul class="user-welcome-message-list" style="width: 94%; margin-top: 0px;">
 			<h3 style="margin-left: -5px; color: rgb(21, 188, 207)"><strong>用户动态</strong></h3>
-			<span style="margin-top: -30px;float: right; display: block;"><%= link_to "更多>>", { :controller => 'users', :action => 'index'} %></span>
+			<span style="margin-top: -30px;float: right; display: block;"><%= link_to "更多>>", { :controller => 'users', :action => 'index'}, :target => "_blank"  %></span>
 			<div class="user-message-box-list">
 			<% find_all_activities.each do |event| %>
 			<li style="display: block;height:60px; padding-bottom: 4px;">
@@ -131,7 +131,7 @@
 					<%= image_tag url_to_avatar(event.event_author), :class => "avatar-3" %>
 				</div>
 				<div class="inner-right" style="float: right; width:86%; height: 100%; ">
-				<span style="color: green;"><%= link_to event.event_author, (user_path(event.event_author) if event.event_author), :style => "color:green;" %></span><%= show_user_content event %>
+				<span style="color: green;"><%= link_to event.event_author, (user_path(event.event_author) if event.event_author), :style => "color:green;", :target => "_blank"  %></span><%= show_user_content event %>
 				<p style="margin-top: 4px;"><span style="color: rgb(172, 174, 177)"><%= time_tag_welcome event.event_datetime %>前</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="float: right; color: rgb(172, 174, 177);"><%= show_event_reply event %></span></p>
 				</div>
 			</li>
@@ -143,7 +143,7 @@
 
 <div id="J_Slide" class="d-p-index-box d-p-index-hotproject">
 	<h3 style="margin-left: 5px; color: #e8770d;"><strong>热门项目</strong></h3>
-  <span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", { :controller => 'projects', :action => 'index', :project_type => 0} %></span>
+  <span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", { :controller => 'projects', :action => 'index', :project_type => 0}, :target => "_blank"  %></span>
 	<div class="d-p-projectlist-box">
 		<ul class="d-p-projectlist">
 			<% find_all_hot_project.map do |project| break if(project == find_all_hot_project[15]) %>
@@ -153,7 +153,7 @@
 		    </div>
 		  	<div style="float: left; margin-left: 10px; width: 360px;">
     	      <p class="layout">
-         	    <span style="display: inline-block; width: 250px;"><%= link_to( project.name, project_path(project.id), :class => "d-g-blue d-p-project-name",  :title => "#{project.name}")%></span>
+         	    <span style="display: inline-block; width: 250px;"><%= link_to( project.name, project_path(project.id), :class => "d-g-blue d-p-project-name",  :title => "#{project.name}", :target => "_blank" )%></span>
          	    <%= content_tag "span", show_grade(project), 
          	        :style => "cursor: pointer; display: inline-block; float: right; color: #ec6300; ",
 			        :title => "项目得分，综合考虑了项目的各项活动，反映了该项目的活跃程度",
@@ -172,7 +172,7 @@
 
 <div id="J_Slide" class="d-p-index-box d-p-index-hotproject" style="float: right;">
 	<h3 style="margin-left: 5px; color: #e8770d;"><strong>热门课程</strong></h3>
-	<span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", {:controller => 'projects', :action => 'course', :project_type => 1, :project_sort_type => 1} %></span>
+	<span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", {:controller => 'projects', :action => 'course', :project_type => 1, :project_sort_type => 1}, :target => "_blank"  %></span>
 	<div class="d-p-projectlist-box">
 		<ul class="d-p-projectlist">
 			<% find_all_hot_course.map do |project| break if(project == find_all_hot_course[5]) %>
@@ -186,8 +186,8 @@
 		        </div>
 		        <div style="float: left; margin-left: 10px; width: 360px;">
 				<p class="layout">
-					<%= link_to( project.name, project_path(project.id), :class => "d-g-blue d-p-project-name",:title => "#{project.name}")%>
-					<span style="cursor: pointer; display: inline-block; float: right; color: #ec6300; white-space: nowrap;">学生人数：<%= link_to "#{studentCount(project)}", project_member_path(project, :role => 2) ,:course =>'1'%></span>
+					<%= link_to( project.name, project_path(project.id), :class => "d-g-blue d-p-project-name",:title => "#{project.name}", :target => "_blank" )%>
+					<span style="cursor: pointer; display: inline-block; float: right; color: #ec6300; white-space: nowrap;">学生人数：<%= link_to "#{studentCount(project)}", project_member_path(project, :role => 2) ,:course =>'1', :target => "_blank" %></span>
 				</p>
 				<p class="layout-1" >
 					<%= content_tag "span", project.description.truncate(50, omission: '...'), :class => "d-p-project-intro" , :title => project.description %>
@@ -202,14 +202,14 @@
 			
 <div id="J_Slide" class="d-p-index-box d-p-index-hotproject" style="float: right;">
 	<h3 style="margin-left: 5px; color: color: (51, 119, 51);"><strong>热门竞赛</strong></h3>
-	<span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", {:controller => 'bids', :action => 'contest', :project_type => 1} %></span>
+	<span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", {:controller => 'bids', :action => 'contest', :project_type => 1}, :target => "_blank"  %></span>
 	<div class="d-p-projectlist-box">
 		<ul class="d-p-projectlist">
 			<% find_all_hot_contest.map do |contest| break if(contest == find_all_hot_contest[5]) %>
 			<li  style="background-image:none;">
 				<p class="layout">
 					<span style = "background: url('/images/007.gif') no-repeat scroll ;background-position: left center;"><%= link_to( contest.name, respond_path(contest.id), :class => "d-g-blue d-p-project-name",  :title => "#{contest.name}",
-					:style => "margin-left: 28px;") %></span>
+					:style => "margin-left: 28px;", :target => "_blank")  %></span>
 				</p>
 				<p class="layout-1" >
 					<%= content_tag "span", contest.description.truncate(50, omission: '...'), :class => "d-p-project-intro" , :title => contest.description %>
@@ -222,14 +222,14 @@
 
 <div id="J_Slide" class="d-p-index-box d-p-index-hotproject"  style="float: right;">
 	<h3 style="margin-left: 5px; color: color: (51, 119, 51);"><strong>热门众包</strong></h3>
-	<span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", {:controller => 'bids', :action => 'index'} %></span>
+	<span style="margin-top: -20px;float: right; display: block;"><%= link_to "更多>>", {:controller => 'bids', :action => 'index'}, :target => "_blank"  %></span>
 	<div class="d-p-projectlist-box">
 		<ul class="d-p-projectlist">
 			<% find_all_hot_bid.map do |bid| break if(bid == find_all_hot_bid[5]) %>
 			<li  style="background-image:none;">
 				<p class="layout">
 					<span style = "background: url('/images/007.gif') no-repeat scroll ;background-position: left center;"><%= link_to( bid.name, respond_path(bid.id), :class => "d-g-blue d-p-project-name", :title => "#{bid.name}",
-					:style => "margin-left: 28px;")%></span>
+					:style => "margin-left: 28px;", :target => "_blank") %></span>
 				</p>
 				<p class="layout-1" >
 					<%= content_tag "span", bid.description.truncate(50, omission: '...'), :class => "d-p-project-intro" , :title => bid.description %>