diff --git a/app/views/boards/_course_new.html.erb b/app/views/boards/_course_new.html.erb
index 90f0d9c7e..71f9d7c69 100644
--- a/app/views/boards/_course_new.html.erb
+++ b/app/views/boards/_course_new.html.erb
@@ -126,7 +126,7 @@
   <div id="new_course_topic">
     <div class="homepagePostBrief c_grey">
       <div>
-        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="255" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
+        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="128" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
         <p id="subjectmsg"></p>
       </div>
       <div id="topic_editor" style="display: none;">
diff --git a/app/views/boards/_org_subfield_new.html.erb b/app/views/boards/_org_subfield_new.html.erb
index 7664c5c32..260fab682 100644
--- a/app/views/boards/_org_subfield_new.html.erb
+++ b/app/views/boards/_org_subfield_new.html.erb
@@ -7,7 +7,7 @@
   <div id="new_course_topic">
     <div class="homepagePostBrief c_grey">
       <div>
-        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="255" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
+        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="128" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
         <p id="subjectmsg"></p>
       </div>
       <div id="topic_editor" style="display: none;">
diff --git a/app/views/boards/_project_new.html.erb b/app/views/boards/_project_new.html.erb
index 44895a48e..551c7a541 100644
--- a/app/views/boards/_project_new.html.erb
+++ b/app/views/boards/_project_new.html.erb
@@ -7,7 +7,7 @@
   <div id="new_course_topic">
     <div class="homepagePostBrief c_grey">
       <div>
-        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="255" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
+        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="128" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
         <p id="subjectmsg"></p>
       </div>
       <div id="topic_editor" style="display: none;">
diff --git a/app/views/boards/_project_new_topic.html.erb b/app/views/boards/_project_new_topic.html.erb
index 7a211e25d..83e0de58d 100644
--- a/app/views/boards/_project_new_topic.html.erb
+++ b/app/views/boards/_project_new_topic.html.erb
@@ -7,7 +7,7 @@
   <div id="new_course_topic">
     <div class="homepagePostBrief c_grey">
       <div>
-        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="255" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
+        <input  type="text" name="message[subject]" id="message_subject" class="InputBox  w713" maxlength="128" onfocus="$('#topic_editor').show()" onkeyup="regexTopicSubject();" placeholder="发布帖子，请先输入帖子标题" value="<%= topic.subject%>" >
         <p id="subjectmsg"></p>
       </div>
       <div id="topic_editor" style="display: none;">