diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 470315bdc..c8707d72e 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -26,14 +26,14 @@ class CoursesController < ApplicationController
                                      :base_info, :get_historical_courses, :create_group_by_importing_file,
                                      :attahcment_category_list,:export_member_scores_excel, :duplicate_course,
                                      :switch_to_teacher, :switch_to_assistant, :switch_to_student, :exit_course,
-                                     :informs, :update_informs, :online_learning, :update_task_position, :tasks_list, :join_excellent_course]
+                                     :informs, :update_informs, :new_informs, :online_learning, :update_task_position, :tasks_list, :join_excellent_course]
   before_action :user_course_identity, except: [:join_excellent_course, :index, :create, :new, :apply_to_join_course,
                                                 :search_course_list, :get_historical_course_students, :mine, :search_slim, :board_list]
   before_action :teacher_allowed, only: [:update, :destroy, :settings, :search_teacher_candidate,
                                          :transfer_to_course_group, :delete_from_course,
                                          :search_users, :add_students_by_search, :get_historical_courses, :add_teacher_popup, :add_teacher]
   before_action :admin_allowed, only: [:set_invite_code_halt, :set_public_or_private, :change_course_admin,
-                                       :set_course_group, :create_group_by_importing_file, :update_informs,
+                                       :set_course_group, :create_group_by_importing_file, :update_informs, :new_informs,
                                        :update_task_position, :tasks_list]
   before_action :teacher_or_admin_allowed, only: [:graduation_group_list, :create_graduation_group, :join_graduation_group,
                                                   :change_course_teacher, :export_member_scores_excel, :course_group_list,
@@ -42,6 +42,7 @@ class CoursesController < ApplicationController
   before_action :find_board, only: :board_list
   before_action :validate_page_size, only: :mine
   before_action :course_tasks, only: [:tasks_list, :update_task_position]
+  before_action :validate_inform_params, only: [:update_informs, :new_informs]
 
   if RUBY_PLATFORM =~ /linux/
     require 'simple_xlsx_reader'
@@ -159,7 +160,7 @@ class CoursesController < ApplicationController
               CourseMember.create!(course_id: @course.id, user_id: s_member.user_id, role: 2)
             end
 
-            Inform.create(container: @course, description: @subject.learning_notes)
+            Inform.create(container: @course, description: @subject.learning_notes, name: "学习须知")
           end
 
           course_module_types = params[:course_module_types]
@@ -234,14 +235,20 @@ class CoursesController < ApplicationController
   end
 
   def informs
-
+    @informs = @course.informs
   end
 
-  def update_informs
-    tip_exception("公告内容不能为空") if params[:description].blank?
-    inform = @course.inform || Inform.new(container: @course)
+  def new_informs
+    inform = Inform.new(container: @course)
+    inform.name = params[:name]
     inform.description = params[:description]
     inform.save!
+    normal_status("创建成功")
+  end
+
+  def update_informs
+    inform = @course.informs.find_by(id: params[:inform_id])
+    inform.update_attributes!(name: params[:name], description: params[:description])
     normal_status("更新成功")
   end
 
@@ -1259,6 +1266,11 @@ class CoursesController < ApplicationController
     end
   end
 
+  def validate_inform_params
+    tip_exception("公告标题不能为空") if params[:name].blank?
+    tip_exception("公告内容不能为空") if params[:description].blank?
+  end
+
   # def find_container
   #   case params[:container_type]
   #   when 'shixun_homework', 'common_homework', 'group_homework'
diff --git a/app/models/course.rb b/app/models/course.rb
index e2fc5140b..5a2a065ba 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -9,7 +9,7 @@ class Course < ApplicationRecord
 
   # 所属实践课程
   belongs_to :subject, optional: true
-  has_one :inform, as: :container, dependent: :destroy
+  has_many :informs, as: :container, dependent: :destroy
 
   has_many :course_infos, dependent: :destroy
   # 课堂左侧导航栏的模块
diff --git a/app/models/inform.rb b/app/models/inform.rb
index faf1d48e6..5caf80c5f 100644
--- a/app/models/inform.rb
+++ b/app/models/inform.rb
@@ -1,3 +1,6 @@
 class Inform < ApplicationRecord
   belongs_to :container, polymorphic: true, optional: true
+
+  validates :name, length: { maximum: 60 }
+  validates :description, length: { maximum: 5000 }
 end
diff --git a/app/views/courses/informs.json.jbuilder b/app/views/courses/informs.json.jbuilder
index d584be917..7fc396184 100644
--- a/app/views/courses/informs.json.jbuilder
+++ b/app/views/courses/informs.json.jbuilder
@@ -1 +1,5 @@
-json.description @course.inform&.description
\ No newline at end of file
+json.informs @informs do |inform|
+  json.id inform.id
+  json.name inform.name
+  json.description inform.description
+end
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index de4f46a40..5ed8ecd69 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -349,6 +349,7 @@ Rails.application.routes.draw do
         post 'exit_course'
         get 'informs'
         post 'update_informs'
+        post 'new_informs'
         get 'online_learning'
         post 'join_excellent_course'
         get 'tasks_list'