diff --git a/src/main/java/side/onetime/controller/FixedController.java b/src/main/java/side/onetime/controller/FixedController.java
index f5ee855..080b6fa 100644
--- a/src/main/java/side/onetime/controller/FixedController.java
+++ b/src/main/java/side/onetime/controller/FixedController.java
@@ -70,4 +70,15 @@ public ResponseEntity<ApiResponse<Object>> modifyFixedEvent(
 
         return ApiResponse.onSuccess(SuccessStatus._MODIFY_FIXED_SCHEDULE);
     }
+
+    // 고정 이벤트 & 스케줄 삭제 API
+    @DeleteMapping("/{id}")
+    public ResponseEntity<ApiResponse<Object>> removeFixedEvent(
+            @RequestHeader("Authorization") String authorizationHeader,
+            @PathVariable("id") Long fixedEventId) {
+
+        fixedEventService.removeFixedEvent(authorizationHeader, fixedEventId);
+
+        return ApiResponse.onSuccess(SuccessStatus._REMOVE_FIXED_SCHEDULE);
+    }
 }
diff --git a/src/main/java/side/onetime/global/common/status/SuccessStatus.java b/src/main/java/side/onetime/global/common/status/SuccessStatus.java
index 9e5cce9..943f144 100644
--- a/src/main/java/side/onetime/global/common/status/SuccessStatus.java
+++ b/src/main/java/side/onetime/global/common/status/SuccessStatus.java
@@ -49,6 +49,7 @@ public enum SuccessStatus implements BaseCode {
     _GET_ALL_FIXED_SCHEDULES(HttpStatus.OK, "200", "전체 고정 스케줄 조회에 성공했습니다."),
     _GET_FIXED_SCHEDULE_DETAIL(HttpStatus.OK, "200", "특정 고정 스케줄 상세 조회에 성공했습니다."),
     _MODIFY_FIXED_SCHEDULE(HttpStatus.OK, "200", "고정 스케줄 수정에 성공했습니다."),
+    _REMOVE_FIXED_SCHEDULE(HttpStatus.OK, "200", "고정 스케줄 삭제에 성공했습니다."),
     ;
 
     private final HttpStatus httpStatus;
diff --git a/src/main/java/side/onetime/repository/FixedEventRepository.java b/src/main/java/side/onetime/repository/FixedEventRepository.java
index ce2d75b..c915949 100644
--- a/src/main/java/side/onetime/repository/FixedEventRepository.java
+++ b/src/main/java/side/onetime/repository/FixedEventRepository.java
@@ -5,6 +5,8 @@
 import side.onetime.domain.User;
 import side.onetime.repository.custom.FixedEventRepositoryCustom;
 
+import java.util.Optional;
+
 public interface FixedEventRepository extends JpaRepository<FixedEvent, Long>, FixedEventRepositoryCustom {
-    FixedEvent findByUserAndId(User user, Long id);
+    Optional<FixedEvent> findByUserAndId(User user, Long id);
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/repository/custom/FixedEventRepositoryCustom.java b/src/main/java/side/onetime/repository/custom/FixedEventRepositoryCustom.java
index c51a321..2a846e5 100644
--- a/src/main/java/side/onetime/repository/custom/FixedEventRepositoryCustom.java
+++ b/src/main/java/side/onetime/repository/custom/FixedEventRepositoryCustom.java
@@ -8,4 +8,5 @@
 public interface FixedEventRepositoryCustom {
     List<FixedEvent> findAllByUser(User user);
     FixedEvent findByUserAndFixedEventIdCustom(User user, Long fixedEventId);
+    void deleteFixedEventAndSelections(User user, Long fixedEventId);
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/repository/custom/FixedEventRepositoryImpl.java b/src/main/java/side/onetime/repository/custom/FixedEventRepositoryImpl.java
index 16092e2..1fe4a7b 100644
--- a/src/main/java/side/onetime/repository/custom/FixedEventRepositoryImpl.java
+++ b/src/main/java/side/onetime/repository/custom/FixedEventRepositoryImpl.java
@@ -2,6 +2,7 @@
 
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import lombok.RequiredArgsConstructor;
+import org.springframework.transaction.annotation.Transactional;
 import side.onetime.domain.FixedEvent;
 import side.onetime.domain.User;
 
@@ -18,6 +19,7 @@ public class FixedEventRepositoryImpl implements FixedEventRepositoryCustom {
 
     // 유저 고정 스케줄 목록 조회
     @Override
+    @Transactional(readOnly = true)
     public List<FixedEvent> findAllByUser(User user) {
         return queryFactory.selectFrom(fixedEvent)
                 .leftJoin(fixedEvent.fixedSelections, fixedSelection)
@@ -30,6 +32,7 @@ public List<FixedEvent> findAllByUser(User user) {
 
     // 특정 고정 스케줄 상세 조회
     @Override
+    @Transactional(readOnly = true)
     public FixedEvent findByUserAndFixedEventIdCustom(User user, Long fixedEventId) {
         return queryFactory.selectFrom(fixedEvent)
                 .leftJoin(fixedEvent.fixedSelections, fixedSelection)
@@ -40,4 +43,21 @@ public FixedEvent findByUserAndFixedEventIdCustom(User user, Long fixedEventId)
                         .and(fixedEvent.id.eq(fixedEventId)))
                 .fetchOne();
     }
+
+    // 고정 이벤트 & 스케줄 삭제
+    @Override
+    @Transactional
+    public void deleteFixedEventAndSelections(User user, Long fixedEventId) {
+        // fixed_selections 삭제
+        queryFactory.delete(fixedSelection)
+                .where(fixedSelection.fixedEvent.id.eq(fixedEventId)
+                        .and(fixedSelection.fixedEvent.user.eq(user)))
+                .execute();
+
+        // fixed_events 삭제
+        queryFactory.delete(fixedEvent)
+                .where(fixedEvent.id.eq(fixedEventId)
+                        .and(fixedEvent.user.eq(user)))
+                .execute();
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/service/FixedEventService.java b/src/main/java/side/onetime/service/FixedEventService.java
index 5179866..239e070 100644
--- a/src/main/java/side/onetime/service/FixedEventService.java
+++ b/src/main/java/side/onetime/service/FixedEventService.java
@@ -7,6 +7,8 @@
 import side.onetime.domain.User;
 import side.onetime.dto.fixed.request.CreateFixedEventRequest;
 import side.onetime.dto.fixed.request.ModifyFixedEventRequest;
+import side.onetime.exception.CustomException;
+import side.onetime.exception.status.FixedErrorStatus;
 import side.onetime.repository.FixedEventRepository;
 import side.onetime.util.JwtUtil;
 
@@ -36,8 +38,18 @@ public void createFixedEvent(String authorizationHeader, CreateFixedEventRequest
     @Transactional
     public void modifyFixedEvent(String authorizationHeader, Long fixedEventId, ModifyFixedEventRequest modifyFixedEventRequest) {
         User user = jwtUtil.getUserFromHeader(authorizationHeader);
-        FixedEvent fixedEvent = fixedEventRepository.findByUserAndId(user, fixedEventId);
+        FixedEvent fixedEvent = fixedEventRepository.findByUserAndId(user, fixedEventId)
+                .orElseThrow(() -> new CustomException(FixedErrorStatus._NOT_FOUND_FIXED_EVENT));
         fixedEvent.updateTitle(modifyFixedEventRequest.title());
         fixedEventRepository.save(fixedEvent);
     }
+
+    // 고정 이벤트 & 스케줄 삭제 메서드
+    @Transactional
+    public void removeFixedEvent(String authorizationHeader, Long fixedEventId) {
+        User user = jwtUtil.getUserFromHeader(authorizationHeader);
+        FixedEvent fixedEvent = fixedEventRepository.findByUserAndId(user, fixedEventId)
+                .orElseThrow(() -> new CustomException(FixedErrorStatus._NOT_FOUND_FIXED_EVENT));
+        fixedEventRepository.deleteFixedEventAndSelections(user, fixedEventId);
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/service/FixedScheduleService.java b/src/main/java/side/onetime/service/FixedScheduleService.java
index 34d717f..0008639 100644
--- a/src/main/java/side/onetime/service/FixedScheduleService.java
+++ b/src/main/java/side/onetime/service/FixedScheduleService.java
@@ -120,7 +120,8 @@ public FixedEventDetailResponse getFixedScheduleDetail(String authorizationHeade
     @Transactional
     public void modifyFixedSchedule(String authorizationHeader, Long fixedEventId, ModifyFixedEventRequest modifyFixedEventRequest) {
         User user = jwtUtil.getUserFromHeader(authorizationHeader);
-        FixedEvent fixedEvent = fixedEventRepository.findByUserAndId(user, fixedEventId);
+        FixedEvent fixedEvent = fixedEventRepository.findByUserAndId(user, fixedEventId)
+                .orElseThrow(() -> new CustomException(FixedErrorStatus._NOT_FOUND_FIXED_EVENT));
 
         List<String> times = modifyFixedEventRequest.schedules().get(0).times();
         String startTime = times.get(0);