diff --git a/src/main/resources/db/migration/V25__update_user_onboarding_exercise_type_check.sql b/src/main/resources/db/migration/V25__update_user_onboarding_exercise_type_check.sql
new file mode 100644
index 0000000..c2a2bc4
--- /dev/null
+++ b/src/main/resources/db/migration/V25__update_user_onboarding_exercise_type_check.sql
@@ -0,0 +1,38 @@
+-- =====================================================================
+-- V25__update_user_onboarding_exercise_type_check.sql
+-- 목적: user_onboardings.exercise_type CHECK 제약을 현재 ExerciseType enum과 맞춘다.
+-- 배경: 기존 DB 제약은 CARDIO, PILATES, YOGA, WALKING_HIKING를 허용하지만
+--       현재 enum은 WALKING, RUNNING, PILATES_YOGA, HIKING를 사용한다.
+--       신규 enum 값 저장 시 UPDATE/INSERT가 실패하지 않도록 기존 데이터를 변환한다.
+-- 멱등: DROP IF EXISTS -> UPDATE -> ADD 패턴.
+-- =====================================================================
+
+ALTER TABLE user_onboardings
+    DROP CONSTRAINT IF EXISTS user_onboardings_exercise_type_check;
+
+UPDATE user_onboardings
+SET exercise_type = 'WALKING'
+WHERE exercise_type = 'CARDIO';
+
+UPDATE user_onboardings
+SET exercise_type = 'PILATES_YOGA'
+WHERE exercise_type IN ('PILATES', 'YOGA');
+
+UPDATE user_onboardings
+SET exercise_type = 'HIKING'
+WHERE exercise_type = 'WALKING_HIKING';
+
+ALTER TABLE user_onboardings
+    ADD CONSTRAINT user_onboardings_exercise_type_check
+        CHECK (exercise_type IN (
+            'GYM',
+            'HOME_TRAINING',
+            'PILATES_YOGA',
+            'WALKING',
+            'RUNNING',
+            'HIKING',
+            'SPORTS',
+            'CROSSFIT',
+            'SWIMMING',
+            'NONE'
+        ));