diff --git a/app/controllers/competition_infos_controller.rb b/app/controllers/competition_infos_controller.rb
index 066e7ae1b..ccbfdf046 100644
--- a/app/controllers/competition_infos_controller.rb
+++ b/app/controllers/competition_infos_controller.rb
@@ -355,6 +355,12 @@ class CompetitionInfosController < ApplicationController
       end
       competition_user.status = 2
     end
+    if @competition_info.identifier.to_s.downcase.include?("tzb2025")
+      if CompetitionUser.where(competition_info: @competition_info.id).where(status: [1, 2, 3])
+                        .where(ext4: competition_user.ext4).where(ext5: competition_user.ext5).present?
+        tip_exception "该参赛团队报名表已提交，无法再次提交。"
+      end
+    end
     competition_user.save
     render_ok
   end
@@ -374,6 +380,13 @@ class CompetitionInfosController < ApplicationController
       end
       competition_user.status = 2
     end
+    if @competition_info.identifier.to_s.downcase.include?("tzb2025")
+      if CompetitionUser.where(competition_info: @competition_info.id)
+                        .where(ext4: competition_user.ext4).where(ext5: competition_user.ext5)
+                        .where(status: [1, 2, 3]).where.not(id: competition_user.id).present?
+        tip_exception "该参赛团队报名表已提交，无法再次提交。"
+      end
+    end
     competition_user.save
     render_ok
   end