diff --git a/src/main/java/com/atmd/backend/domain/group/repository/GroupDailyWorkoutRecordRepository.java b/src/main/java/com/atmd/backend/domain/group/repository/GroupDailyWorkoutRecordRepository.java
index fa74c23..e1f71d9 100644
--- a/src/main/java/com/atmd/backend/domain/group/repository/GroupDailyWorkoutRecordRepository.java
+++ b/src/main/java/com/atmd/backend/domain/group/repository/GroupDailyWorkoutRecordRepository.java
@@ -11,6 +11,10 @@
 
 public interface GroupDailyWorkoutRecordRepository extends JpaRepository<GroupDailyWorkoutRecord, Long> {
 
+    @Modifying
+    @Query("delete from GroupDailyWorkoutRecord r where r.group.id = :groupId")
+    void deleteAllByGroupId(@Param("groupId") Long groupId);
+
     @Query(value = """
             SELECT
                 u.id AS userId,
diff --git a/src/main/java/com/atmd/backend/domain/group/service/GroupService.java b/src/main/java/com/atmd/backend/domain/group/service/GroupService.java
index 5566d6b..1c75d4b 100644
--- a/src/main/java/com/atmd/backend/domain/group/service/GroupService.java
+++ b/src/main/java/com/atmd/backend/domain/group/service/GroupService.java
@@ -8,6 +8,7 @@
 import com.atmd.backend.domain.group.entity.Group;
 import com.atmd.backend.domain.group.entity.GroupUser;
 import com.atmd.backend.domain.group.exception.GroupErrorCode;
+import com.atmd.backend.domain.group.repository.GroupDailyWorkoutRecordRepository;
 import com.atmd.backend.domain.group.repository.GroupRepository;
 import com.atmd.backend.domain.group.repository.GroupUserRepository;
 import com.atmd.backend.domain.user.entity.User;
@@ -35,6 +36,7 @@ public class GroupService {
 
     private final GroupRepository groupRepository;
     private final GroupUserRepository groupUserRepository;
+    private final GroupDailyWorkoutRecordRepository groupDailyWorkoutRecordRepository;
     private final UserRepository userRepository;
 
     @Value("${app.frontend-base-url:https://www.atmd.cloud}")
@@ -126,6 +128,7 @@ public void deleteGroup(Long groupId, Long userId) {
         if (!group.isOwner(userId)) {
             throw new GeneralException(GroupErrorCode.ACCESS_DENIED);
         }
+        groupDailyWorkoutRecordRepository.deleteAllByGroupId(groupId);
         groupUserRepository.deleteAllByGroupId(groupId);
         groupRepository.delete(group);
     }