diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 84aff1c25..aad350d22 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -98,11 +98,11 @@ module CoursesHelper
   end
 
 
-  alias teacherCountOrigin teacherCount
-  def teacherCount project
-    count = teacherCountOrigin project
-    garble count
-  end
+  #alias teacherCountOrigin teacherCount
+  #def teacherCount project
+  #  count = teacherCountOrigin project
+  #  garble count
+  #end
 
   # 注意：此方法有问题，速度慢且结果不准
  # alias studentCountOrigin studentCount
@@ -114,7 +114,7 @@ module CoursesHelper
   # 学生人数计算
   # add by nwb
   def studentCount course
-    count = course.student.count
+    count = searchStudent(course).count#course.student.count
     if count <= 5
       result = count.to_s
     elsif count < 10  && count > 5
@@ -125,6 +125,19 @@ module CoursesHelper
     result
   end
 
+  #课程成员数计算
+  def memberCount course
+    count = searchStudent(course).count + searchTeacherAndAssistant(course).count
+    if count <= 5
+      result = count.to_s
+    elsif count < 10  && count > 5
+      result = "5+"
+    else
+      result = (count-count % 10).to_s + "+"
+    end
+    result
+  end
+
   def eventToLanguageCourse event_type, course
     case event_type
       when "issue-note"
diff --git a/app/views/welcome/course.html.erb b/app/views/welcome/course.html.erb
index 3aca2c350..46a6d03a1 100644
--- a/app/views/welcome/course.html.erb
+++ b/app/views/welcome/course.html.erb
@@ -123,7 +123,7 @@
                 <div class='desc_item text_nowrap'>
                   [<%= get_course_term course %>]
                   <%= link_to(course.name.truncate(30, omission: '...'), course_path(course.id), :class => "d-g-blue d-p-project-name", :title => "#{course.name}") %>
-                  (<%= "#{studentCount(course)}人" %>)
+                  (<%= "#{memberCount(course)}人" %>)
                   <% files_count = course.attachments.count.to_s %>
                   (<%= link_to "#{files_count}份", course_files_path(course) %>资料)
                 </div>
@@ -164,7 +164,7 @@
                 <div class='desc_item text_nowrap'>
                   [<%= get_course_term course %>]
                   <%= link_to(course.name.truncate(30, omission: '...'), course_path(course.id), :class => "d-g-blue d-p-project-name", :title => "#{course.name}") %>
-                  (<%= "#{studentCount(course)}人" %>)
+                  (<%= "#{memberCount(course)}人" %>)
                   <% files_count = course.attachments.count.to_s %>
                   (<%= link_to "#{files_count}份", course_files_path(course) %>资料)
                 </div>
@@ -209,7 +209,7 @@
                     <div class='desc_item text_nowrap'>
                       [<%= get_course_term course %>]
                       <%= link_to(course.name.truncate(30, omission: '...'), course_path(course.id), :class => "d-g-blue d-p-project-name", :title => "#{course.name}") %>
-                      (<%= "#{studentCount(course)}人" %> )
+                      (<%= "#{memberCount(course)}人" %> )
                       <% files_count = course.attachments.count.to_i.to_s %>
                       (<%= link_to "#{files_count}份", course_files_path(course) %>资料)
                     </div>