diff --git a/src/main/java/Journey/Together/domain/bookbark/controller/BookmarkController.java b/src/main/java/Journey/Together/domain/bookbark/controller/BookmarkController.java
index 549cb4f..35b4d1f 100644
--- a/src/main/java/Journey/Together/domain/bookbark/controller/BookmarkController.java
+++ b/src/main/java/Journey/Together/domain/bookbark/controller/BookmarkController.java
@@ -40,10 +40,17 @@ public ApiResponse<List<PlanBookmarkRes>> getPlanBookmarks(
     }
 
 
-    @PatchMapping("/{placeId}")
-    public ApiResponse<List<PlaceBookmarkDto>> getBookmarkPlaceNames(
+    @PatchMapping("/place/{placeId}")
+    public ApiResponse<?> updatePlaceBookmark(
             @AuthenticationPrincipal PrincipalDetails principalDetails, @PathVariable Long placeId){
-        bookmarkService.bookmark(principalDetails.getMember(), placeId);
+        bookmarkService.placeBookmark(principalDetails.getMember(), placeId);
+        return ApiResponse.success(Success.CHANGE_BOOKMARK_SUCCESS);
+    }
+
+    @PatchMapping("/plan/{planId}")
+    public ApiResponse<?> updatePlanBookmark(
+            @AuthenticationPrincipal PrincipalDetails principalDetails, @PathVariable Long planId){
+        bookmarkService.planBookmark(principalDetails.getMember(), planId);
         return ApiResponse.success(Success.CHANGE_BOOKMARK_SUCCESS);
     }
 
diff --git a/src/main/java/Journey/Together/domain/bookbark/repository/PlanBookmarkRepository.java b/src/main/java/Journey/Together/domain/bookbark/repository/PlanBookmarkRepository.java
index 590fd6d..683c8a4 100644
--- a/src/main/java/Journey/Together/domain/bookbark/repository/PlanBookmarkRepository.java
+++ b/src/main/java/Journey/Together/domain/bookbark/repository/PlanBookmarkRepository.java
@@ -3,6 +3,7 @@
 
 import Journey.Together.domain.bookbark.entity.PlaceBookmark;
 import Journey.Together.domain.bookbark.entity.PlanBookmark;
+import Journey.Together.domain.dairy.entity.Plan;
 import Journey.Together.domain.member.entity.Member;
 import Journey.Together.domain.place.entity.Place;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -13,5 +14,7 @@ public interface PlanBookmarkRepository extends JpaRepository<PlanBookmark, Long
 
     List<PlanBookmark> findAllByMemberOrderByCreatedAtDesc(Member member);
 
+    PlanBookmark findPlanBookmarkByPlanAndMember(Plan plan, Member member);
+
 
 }
diff --git a/src/main/java/Journey/Together/domain/bookbark/service/BookmarkService.java b/src/main/java/Journey/Together/domain/bookbark/service/BookmarkService.java
index c8f992f..7bacf05 100644
--- a/src/main/java/Journey/Together/domain/bookbark/service/BookmarkService.java
+++ b/src/main/java/Journey/Together/domain/bookbark/service/BookmarkService.java
@@ -6,9 +6,11 @@
 import Journey.Together.domain.bookbark.entity.PlanBookmarkRes;
 import Journey.Together.domain.bookbark.repository.PlaceBookmarkRepository;
 import Journey.Together.domain.bookbark.repository.PlanBookmarkRepository;
+import java.util.Optional;
 import Journey.Together.domain.dairy.entity.Day;
 import Journey.Together.domain.dairy.entity.Plan;
 import Journey.Together.domain.dairy.repository.DayRepository;
+import Journey.Together.domain.dairy.repository.PlanRepository;
 import Journey.Together.domain.dairy.service.PlanService;
 import Journey.Together.domain.member.entity.Member;
 import Journey.Together.domain.place.dto.response.PlaceBookmarkDto;
@@ -35,6 +37,7 @@ public class BookmarkService {
     private final PlaceRepository placeRepository;
 
     private final DayRepository dayRepository;
+    private final PlanRepository planRepository;
 
 
     //북마크한 여행지 이름만 가져오기
@@ -49,10 +52,10 @@ public List<PlaceBookmarkDto> getBookmarkPlaceNames(Member member){
 
     @Transactional
     // 북마크 상태변경
-    public void bookmark(Member member, Long placeId){
+    public void placeBookmark(Member member, Long placeId){
         Place place = getPlace(placeId);
 
-        PlaceBookmark placeBookmark = placeBookmarkRepository.findPlaceBookmarkByPlaceAndMember(place, member);// 북마크 설정
+        PlaceBookmark placeBookmark = placeBookmarkRepository.findPlaceBookmarkByPlaceAndMember(place, member);
         if (placeBookmark == null) {
             PlaceBookmark newPlaceBookmark = PlaceBookmark.builder()
                     .place(place)
@@ -65,6 +68,25 @@ public void bookmark(Member member, Long placeId){
         }
     }
 
+    @Transactional
+    // 북마크 상태변경
+    public void planBookmark(Member member, Long planId){
+        Plan plan = planRepository.findById(planId)
+                .orElseThrow(() -> new ApplicationException(ErrorCode.NOT_FOUND_PLACE_EXCEPTION));
+
+        PlanBookmark planBookmark = planBookmarkRepository.findPlanBookmarkByPlanAndMember(plan, member);
+        if (planBookmark == null) {
+            PlanBookmark newPlanBookmark = PlanBookmark.builder()
+                    .plan(plan)
+                    .member(member)
+                    .build();
+            planBookmarkRepository.save(newPlanBookmark);
+        } else {
+            // 북마크 해체
+            planBookmarkRepository.delete(planBookmark);
+        }
+    }
+
     private Place getPlace(Long placeId){
         return placeRepository.findById(placeId).orElseThrow(
                 ()->new ApplicationException(ErrorCode.NOT_FOUND_PLACE_EXCEPTION));
diff --git a/src/main/java/Journey/Together/domain/dairy/repository/PlanRepository.java b/src/main/java/Journey/Together/domain/dairy/repository/PlanRepository.java
index 15c3c9a..f8e2239 100644
--- a/src/main/java/Journey/Together/domain/dairy/repository/PlanRepository.java
+++ b/src/main/java/Journey/Together/domain/dairy/repository/PlanRepository.java
@@ -5,12 +5,14 @@
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
+import java.util.Optional;
 
 import java.time.LocalDate;
 import java.util.List;
 
 public interface PlanRepository extends JpaRepository<Plan, Long> {
     Plan findPlanByPlanIdAndDeletedAtIsNull(Long planId);
+
     Plan findPlanByMemberAndPlanIdAndDeletedAtIsNull(Member member,Long planId);
     List<Plan> findAllByMemberAndDeletedAtIsNull(Member member);
     Plan findPlanByMemberAndPlanIdAndEndDateIsBeforeAndDeletedAtIsNull(Member member, Long planId, LocalDate today);