diff --git a/app/controllers/admins/competition_settings_controller.rb b/app/controllers/admins/competition_settings_controller.rb
index c905c4644..d062e4c46 100644
--- a/app/controllers/admins/competition_settings_controller.rb
+++ b/app/controllers/admins/competition_settings_controller.rb
@@ -20,7 +20,7 @@ class Admins::CompetitionSettingsController < Admins::BaseController
   end
 
   def basic_form_params
-    params.permit(:identifier, :name, :sub_title, :start_time, :end_time, :mode, :identifier, :bonus, :awards_count, :description, :course_id, :teach_start_time, :teach_end_time)
+    params.permit(:identifier, :name, :sub_title, :sponsor_schools, :region_schools, :start_time, :end_time, :mode, :identifier, :bonus, :awards_count, :description, :course_id, :teach_start_time, :teach_end_time)
   end
 
   def nav_form_params
diff --git a/app/controllers/competitions/students_controller.rb b/app/controllers/competitions/students_controller.rb
index 8fd235fd1..9d0b40754 100644
--- a/app/controllers/competitions/students_controller.rb
+++ b/app/controllers/competitions/students_controller.rb
@@ -7,6 +7,7 @@ class Competitions::StudentsController < Competitions::BaseController
     end
 
     students = User.joins(:user_extension).where(status: 1, user_extensions: { identity: 1 })
+    students = students.where(user_extensions: { school_id: current_competition.region_schools.pluck(:school_id) }) if current_competition.region_schools.size > 0
     students = students.where.not(id: params[:student_ids]) if params[:student_ids].present?
     students = students.where('LOWER(CONCAT(lastname, firstname, login, nickname)) LIKE ?', "%#{keyword}%")
     @students = students.includes(user_extension: :school).limit(20)
diff --git a/app/models/competition.rb b/app/models/competition.rb
index 694f1ca57..845c5c00f 100644
--- a/app/models/competition.rb
+++ b/app/models/competition.rb
@@ -22,6 +22,9 @@ class Competition < ApplicationRecord
   has_many :attachments, as: :container, dependent: :destroy
 
   has_many :competition_awards, dependent: :destroy
+  has_many :competition_schools, dependent: :destroy
+  has_one :sponsor_schools, -> { where(source: :sponsor) }, class_name: 'CompetitionSchool'  # 主办方
+  has_one :region_schools, -> { where(source: :region) }, class_name: 'CompetitionSchool'   # 开放范围
 
   after_create :create_competition_modules
 
@@ -79,6 +82,12 @@ class Competition < ApplicationRecord
     team_members.exists?(user_id: user.id)
   end
 
+  # 是否开放
+  def open?(user)
+    user_school_id = user.user_extension&.school_id.to_i
+    competition.region_schools.size == 0 || competition.region_schools.exists?(school_id: user_school_id)
+  end
+
   # 是否禁止教师报名
   def teacher_enroll_forbidden?
     teacher_staff.blank? || teacher_staff.maximum.zero?
diff --git a/app/models/competition_school.rb b/app/models/competition_school.rb
new file mode 100644
index 000000000..c1a5decbe
--- /dev/null
+++ b/app/models/competition_school.rb
@@ -0,0 +1,5 @@
+class CompetitionSchool < ApplicationRecord
+  # source sponsor: 主办方， region：开放范围
+  belongs_to :competition
+  belongs_to :school
+end
diff --git a/app/services/admins/competition_basic_setting_service.rb b/app/services/admins/competition_basic_setting_service.rb
index d943b1cb0..dc3a9cdc5 100644
--- a/app/services/admins/competition_basic_setting_service.rb
+++ b/app/services/admins/competition_basic_setting_service.rb
@@ -20,6 +20,7 @@ class Admins::CompetitionBasicSettingService < ApplicationService
 
       competition.save!
 
+      # 竞赛模式相关设置
       if competition.mode == 1 || competition.mode == 4
         competition.competition_mode_setting&.destroy
       else
@@ -33,6 +34,23 @@ class Admins::CompetitionBasicSettingService < ApplicationService
         setting.save!
       end
 
+      # 主办方设置
+      new_school_ids = (params[:sponsor_schools] || []) - competition.sponsor_schools.pluck(:school_id)
+      delete_school_ids = competition.sponsor_schools.pluck(:school_id) - (params[:sponsor_schools] || [])
+      new_school_ids.each do |school_id|
+        CompetitionSchool.create!(competition_id: competition.id, school_id: school_id, source: 'sponsor')
+      end
+      competition.sponsor_schools.where(school_id: delete_school_ids).destroy_all
+
+      # 开放范围设置
+      new_region_school_ids = (params[:region_schools] || []) - competition.region_schools.pluck(:school_id)
+      delete_region_school_ids = competition.region_schools.pluck(:school_id) - (params[:region_schools] || [])
+      new_region_school_ids.each do |school_id|
+        CompetitionSchool.create!(competition_id: competition.id, school_id: school_id, source: 'region')
+      end
+      competition.region_schools.where(school_id: delete_region_school_ids).destroy_all
+
+
       competition
     end
   end
diff --git a/app/services/competitions/create_personal_team_service.rb b/app/services/competitions/create_personal_team_service.rb
index 907c59dc0..82adec0cf 100644
--- a/app/services/competitions/create_personal_team_service.rb
+++ b/app/services/competitions/create_personal_team_service.rb
@@ -11,6 +11,8 @@ class Competitions::CreatePersonalTeamService < ApplicationService
   def call
     raise Error, '个人赛才能报名' unless competition.personal?
 
+    raise Error, '本竞赛只对指定单位/学校开放' unless competition.open?(user)
+
     is_teacher = user.is_teacher?
     raise Error, '本竞赛的参赛者限定为：学生' if is_teacher && competition.teacher_enroll_forbidden?
     raise Error, '本竞赛的参赛者限定为：教师' if !is_teacher && competition.member_enroll_forbidden?
diff --git a/app/services/competitions/join_team_service.rb b/app/services/competitions/join_team_service.rb
index df889abe2..cb0253fa2 100644
--- a/app/services/competitions/join_team_service.rb
+++ b/app/services/competitions/join_team_service.rb
@@ -13,6 +13,8 @@ class Competitions::JoinTeamService < ApplicationService
     invite_code = params[:invite_code].to_s.strip
     raise Error, '战队邀请码不能为空' if invite_code.blank?
 
+    raise Error, '本竞赛只对指定单位/学校开放' unless competition.open?(user)
+
     is_teacher = user.is_teacher?
     raise Error, '本竞赛的参赛者限定为：学生' if is_teacher && competition.teacher_enroll_forbidden?
     raise Error, '本竞赛的参赛者限定为：教师' if !is_teacher && competition.member_enroll_forbidden?
diff --git a/db/migrate/20191024105504_create_competition_schools.rb b/db/migrate/20191024105504_create_competition_schools.rb
new file mode 100644
index 000000000..27a425abc
--- /dev/null
+++ b/db/migrate/20191024105504_create_competition_schools.rb
@@ -0,0 +1,11 @@
+class CreateCompetitionSchools < ActiveRecord::Migration[5.2]
+  def change
+    create_table :competition_schools do |t|
+      t.references :competition, index: true
+      t.references :school, index: true
+      t.string :source
+
+      t.timestamps
+    end
+  end
+end
diff --git a/spec/models/competition_school_spec.rb b/spec/models/competition_school_spec.rb
new file mode 100644
index 000000000..dd90d6088
--- /dev/null
+++ b/spec/models/competition_school_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe CompetitionSchool, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end