diff --git a/app/controllers/system_messages_controller.rb b/app/controllers/system_messages_controller.rb
index 42291a407..5ba04241c 100644
--- a/app/controllers/system_messages_controller.rb
+++ b/app/controllers/system_messages_controller.rb
@@ -38,14 +38,14 @@ class SystemMessagesController < ApplicationController
       return
     end
     @system_messages = SystemMessage.new
-    @system_messages.content = params[:system_message][:content]
+    @system_messages.description = params[:system_message][:description]
     @system_messages.user_id = User.current.id
     respond_to do |format|
       if @system_messages.save
         format.html {redirect_to user_message_path(User.current, :type => "system_messages")}
         flash[:notice] = l(:notice_successful_message)
       else
-        if params[:system_message][:content].empty?
+        if params[:system_message][:description].empty?
           flash[:error] = l(:label_content_blank_fail)
         else
           flash[:error] = l(:label_admin_message_fail)
diff --git a/app/models/system_message.rb b/app/models/system_message.rb
index 92a989cb3..3430bea5f 100644
--- a/app/models/system_message.rb
+++ b/app/models/system_message.rb
@@ -1,7 +1,7 @@
 class SystemMessage < ActiveRecord::Base
-  attr_accessible :content, :id, :user_id
+  attr_accessible :content, :id, :user_id, :description
   belongs_to :user
 
-  validates :content, presence: true
-  validates_length_of :content, maximum: 255
+  validates :description, presence: true
+  validates_length_of :description, maximum: 10000
 end
diff --git a/app/views/admin/messages.html.erb b/app/views/admin/messages.html.erb
index 10169f30b..cd28b09a8 100644
--- a/app/views/admin/messages.html.erb
+++ b/app/views/admin/messages.html.erb
@@ -5,7 +5,7 @@
 <div style="padding-top: 20px; padding-left: 5px;">
   <%= form_for(@admin_messages, :html => {:id =>'system_message-form'}) do |f| %>
       <div class="field">
-        <%= f.kindeditor :content,:width=>'87%',:editor_id=>'system_message_editor' %>
+        <%= f.kindeditor :description,:width=>'87%',:editor_id=>'system_message_editor' %>
         <p id="content_notice_span" class="ml55"></p>
       </div>
       <div>
@@ -25,7 +25,7 @@
             $("#content_notice_span").focus();
             return false;
         }
-        else if (obj.length > 255) {
+        else if (obj.length > 10000) {
             $("#content_notice_span").text("内容过长，超过255个字符");
             $("#content_notice_span").css('color', '#ff0000');
             $("#content_notice_span").focus();
diff --git a/app/views/users/user_messages.html.erb b/app/views/users/user_messages.html.erb
index a9fb0ffbd..b713c7152 100644
--- a/app/views/users/user_messages.html.erb
+++ b/app/views/users/user_messages.html.erb
@@ -56,14 +56,14 @@
                   <span class="newsBlue homepageNewsPublisher">Trustie平台</span><span class="homepageNewsType fl">发布新消息：</span>
                 </li>
                 <li class="homepageNewsContent fl">
-                  <%= link_to usm.content.html_safe, user_message_path(User.current, :type => "system_messages"),
+                  <%= link_to usm.content.nil? ? usm.description.html_safe : usm.content.html_safe, user_message_path(User.current, :type => "system_messages"),
                               :class => "newsRed",
                               :onmouseover => "message_titile_show($(this),event);",
                               :onmouseout => "message_titile_hide($(this));"
                   %>
                 </li>
                 <div style="display:none;" class="message_title_red">
-                  <%= usm.content.html_safe %>
+                  <%= usm.content.nil? ? usm.description.html_safe : usm.content.html_safe %>
                 </div>
                 <li class="homepageNewsTime fl"><%= time_tag(usm.created_at).html_safe %> </li>
               </ul>
@@ -350,14 +350,14 @@
                     </li>
                     <li class="homepageNewsPubType fl"><span class="newsBlue homepageNewsPublisher" >Trustie平台</span><span class="homepageNewsType fl">发布新消息：</span></li>
                     <li class="homepageNewsContent fl">
-                      <%= link_to ma.content.html_safe, user_message_path(User.current, :type => "system_messages"),
+                      <%= link_to ma.content.nil? ? ma.description.html_safe : ma.content.html_safe, user_message_path(User.current, :type => "system_messages"),
                                   :class => "#{params[:type]=="unviewed" ? "newsBlack" : "newsRed"}",
                                   :onmouseover =>"message_titile_show($(this),event);",
                                   :onmouseout => "message_titile_hide($(this));"
                    %>
                     </li>
                     <div style="display:none;" class="message_title_red">
-                      <%= ma.content.html_safe%>
+                      <%= ma.content.nil? ? ma.description.html_safe : ma.content.html_safe %>
                     </div>
                     <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
                   </ul>
diff --git a/db/migrate/20150914063751_add_description_to_system_message.rb b/db/migrate/20150914063751_add_description_to_system_message.rb
new file mode 100644
index 000000000..9cc9e4172
--- /dev/null
+++ b/db/migrate/20150914063751_add_description_to_system_message.rb
@@ -0,0 +1,5 @@
+class AddDescriptionToSystemMessage < ActiveRecord::Migration
+  def change
+    add_column :system_messages, :description, :text
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 6bc43fe5c..b162337d3 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20150909062619) do
+ActiveRecord::Schema.define(:version => 20150914063751) do
 
   create_table "activities", :force => true do |t|
     t.integer  "act_id",                                  :null => false
@@ -1361,8 +1361,9 @@ ActiveRecord::Schema.define(:version => 20150909062619) do
   create_table "system_messages", :force => true do |t|
     t.integer  "user_id"
     t.string   "content"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+    t.text     "description"
   end
 
   create_table "taggings", :force => true do |t|