diff --git a/app/models/project_unit.rb b/app/models/project_unit.rb
index 1cb74fc4a..a07f62b4e 100644
--- a/app/models/project_unit.rb
+++ b/app/models/project_unit.rb
@@ -20,13 +20,16 @@ class ProjectUnit < ApplicationRecord
 
   validates :unit_type, uniqueness: { scope: :project_id}
 
-  def self.init_types(project_id)
-    ProjectUnit::unit_types.each do |_, v|
+  def self.init_types(project_id, project_type='common')
+    unit_types = project_type == 'sync_mirror' ? ProjectUnit::unit_types.except("pulls") : ProjectUnit::unit_types
+    unit_types.each do |_, v|
       self.create!(project_id: project_id, unit_type: v)
     end
   end
 
   def self.update_by_unit_types!(project, types) 
+    # 同步镜像项目不能有合并请求模块
+    types.delete("pulls") if project.sync_mirror?
     # 默认code类型自动创建
     types << "code"
     project.project_units.where.not(unit_type: types).each(&:destroy!)
diff --git a/app/services/projects/migrate_service.rb b/app/services/projects/migrate_service.rb
index 85648eda9..7df08f9eb 100644
--- a/app/services/projects/migrate_service.rb
+++ b/app/services/projects/migrate_service.rb
@@ -10,7 +10,7 @@ class Projects::MigrateService < ApplicationService
   def call
     @project = Project.new(project_params)
     if @project.save!
-      ProjectUnit.init_types(@project.id)
+      ProjectUnit.init_types(@project.id, project.project_type)
       Project.update_mirror_projects_count!
       @project.set_owner_permission(user)
       Repositories::MigrateService.new(user, @project, repository_params).call