diff --git a/src/main/resources/db/migration/V7__add_judge_invite_referee_type.sql b/src/main/resources/db/migration/V7__add_judge_invite_referee_type.sql
new file mode 100644
index 0000000..794cf15
--- /dev/null
+++ b/src/main/resources/db/migration/V7__add_judge_invite_referee_type.sql
@@ -0,0 +1,3 @@
+-- Add referee_type column to martial_judge_invite table
+-- This field stores the referee type: 1-Chief Judge, 2-Judge, 3-General Judge
+ALTER TABLE martial_judge_invite ADD COLUMN referee_type INT DEFAULT NULL COMMENT '裁判类型：1-主裁判，2-裁判员，3-总裁';