diff --git a/Gemfile b/Gemfile
index ad254d436..55030971d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,6 +20,8 @@ gem 'bootsnap', '>= 1.1.0', require: false
 
 gem 'gitlab', path: 'lib/gitlab-cli'
 
+gem 'chinese_pinyin'
+
 gem 'rack-cors'
 gem 'redis-rails'
 gem 'roo-xls'
diff --git a/app/helpers/weapps/courses_helper.rb b/app/helpers/weapps/courses_helper.rb
new file mode 100644
index 000000000..cc1b5b112
--- /dev/null
+++ b/app/helpers/weapps/courses_helper.rb
@@ -0,0 +1,30 @@
+module Weapps::CoursesHelper
+  require 'chinese_pinyin'
+
+  def teacher_list teachers
+    data = []
+    teachers.each do |teacher|
+      if teacher.user.present?
+        teacher_user = teacher.user
+        name = teacher_user.real_name
+        role = teacher.role == "CREATOR" ? "管理员" : teacher.role == "PROFESSOR" ? "教师" : "助教"
+        item = {name: name, course_member_id: teacher.id, login: teacher_user.login, user_id: teacher.user_id, role: role,
+                school: teacher_user.school_name, image_url: url_to_avatar(teacher_user)}
+        pinyin = Pinyin.t(name.strip, splitter: '')
+        first_char = pinyin[0]
+        puts first_char
+        if first_char.ord >= 97 && first_char.ord <= 122
+          letter = (first_char.ord - 32).chr.to_s
+        else
+          letter = '#'
+        end
+        if data.pluck(:letter).include?(letter)
+          data.select{|a|a[:letter]==letter}.first[:items] << item
+        else
+          data << {letter: letter, items: [item]}
+        end
+      end
+    end
+    return data
+  end
+end
\ No newline at end of file
diff --git a/app/views/weapps/courses/teachers.json.jbuilder b/app/views/weapps/courses/teachers.json.jbuilder
index 0d89ca814..72a0e4db3 100644
--- a/app/views/weapps/courses/teachers.json.jbuilder
+++ b/app/views/weapps/courses/teachers.json.jbuilder
@@ -1,16 +1,17 @@
-json.teacher_list do
-  json.array! @teacher_list do |teacher|
-    json.course_member_id teacher.id
-    json.name teacher.user.real_name
-    json.login teacher.user.login
-    json.user_id teacher.user.id
-    json.role teacher.role == "CREATOR" ? "管理员" : teacher.role == "PROFESSOR" ? "教师" : "助教"
-    json.school teacher.user&.school_name
-    json.image_url url_to_avatar(teacher.user)
-    # if @user_course_identity < Course::ASSISTANT_PROFESSOR
-    #   json.member_roles teacher.user.course_role(@course)
-    # end
-  end
-end
+json.teacher_list teacher_list(@teacher_list)
+# do
+#   json.array! @teacher_list do |teacher|
+#     json.course_member_id teacher.id
+#     json.name teacher.user.real_name
+#     json.login teacher.user.login
+#     json.user_id teacher.user.id
+#     json.role teacher.role == "CREATOR" ? "管理员" : teacher.role == "PROFESSOR" ? "教师" : "助教"
+#     json.school teacher.user&.school_name
+#     json.image_url url_to_avatar(teacher.user)
+#     # if @user_course_identity < Course::ASSISTANT_PROFESSOR
+#     #   json.member_roles teacher.user.course_role(@course)
+#     # end
+#   end
+# end
 json.teacher_list_size @teacher_list_size
 json.apply_size @applications_size
\ No newline at end of file