diff --git a/nect-api/src/main/java/com/nect/api/domain/mypage/controller/MypageController.java b/nect-api/src/main/java/com/nect/api/domain/mypage/controller/MypageController.java
index bc62608..1797bcb 100644
--- a/nect-api/src/main/java/com/nect/api/domain/mypage/controller/MypageController.java
+++ b/nect-api/src/main/java/com/nect/api/domain/mypage/controller/MypageController.java
@@ -24,10 +24,15 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.MediaType;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.util.MultiValueMap;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 @RestController
 @RequestMapping("/api/v1/mypage")
@@ -61,11 +66,22 @@ public ApiResponse<ProfileSettingsResponseDto> getProfile(
     public ApiResponse<Void> updateProfile(
             @AuthenticationPrincipal UserDetailsImpl userDetails,
             @RequestBody ProfileSettingsRequestDto request
-    ) {
+    ) throws IOException {
         mypageService.updateProfile(userDetails.getUserId(), request);
         return ApiResponse.ok();
     }
 
+    @PatchMapping(value = "/profile/save", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
+    public ApiResponse<Void> updateProfileMultipart(
+            @AuthenticationPrincipal UserDetailsImpl userDetails,
+            @RequestPart("request") ProfileSettingsRequestDto request,
+            @RequestParam(required = false) MultiValueMap<String, MultipartFile> files
+    ) throws IOException {
+        Map<Long, MultipartFile> projectHistoryImages = extractProjectHistoryImages(files);
+        mypageService.updateProfile(userDetails.getUserId(), request, projectHistoryImages);
+        return ApiResponse.ok();
+    }
+
     /**
      * 프로젝트 조회
      */
@@ -114,6 +130,48 @@ public ApiResponse<Void> editField(@PathVariable Long projectId, @RequestParam("
         return ApiResponse.ok();
     }
 
+    private Map<Long, MultipartFile> extractProjectHistoryImages(MultiValueMap<String, MultipartFile> files) {
+        if (files == null || files.isEmpty()) {
+            return Collections.emptyMap();
+        }
+
+        Map<Long, MultipartFile> result = new HashMap<>();
+        for (Map.Entry<String, List<MultipartFile>> entry : files.entrySet()) {
+            Long projectHistoryId = parseProjectHistoryImageKey(entry.getKey());
+            if (projectHistoryId == null) {
+                continue;
+            }
+
+            List<MultipartFile> fileList = entry.getValue();
+            if (fileList == null || fileList.isEmpty()) {
+                continue;
+            }
+
+            MultipartFile file = fileList.get(0);
+            if (file != null && !file.isEmpty()) {
+                result.put(projectHistoryId, file);
+            }
+        }
+
+        return result;
+    }
+
+    private Long parseProjectHistoryImageKey(String key) {
+        if (key == null) {
+            return null;
+        }
+        String prefix = "projectHistoryImages[";
+        if (!key.startsWith(prefix) || !key.endsWith("]")) {
+            return null;
+        }
+        String idPart = key.substring(prefix.length(), key.length() - 1);
+        try {
+            return Long.parseLong(idPart);
+        } catch (NumberFormatException e) {
+            return null;
+        }
+    }
+
 
 
 
diff --git a/nect-api/src/main/java/com/nect/api/domain/mypage/service/MypageService.java b/nect-api/src/main/java/com/nect/api/domain/mypage/service/MypageService.java
index b727ae6..e65bb3a 100644
--- a/nect-api/src/main/java/com/nect/api/domain/mypage/service/MypageService.java
+++ b/nect-api/src/main/java/com/nect/api/domain/mypage/service/MypageService.java
@@ -13,7 +13,9 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.multipart.MultipartFile;
 
+import java.io.IOException;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -77,7 +79,7 @@ public ProfileSettingsResponseDto getProfile(Long userId) {
                 .map(projectHistory -> new ProjectHistoryDto(
                         projectHistory.getUserProjectHistoryId(),
                         projectHistory.getProjectName(),
-                        projectHistory.getProjectImage(),
+                        toPresignedProjectImage(projectHistory.getProjectImage()),
                         projectHistory.getProjectDescription(),
                         projectHistory.getStartYearMonth(),
                         projectHistory.getEndYearMonth()
@@ -147,7 +149,13 @@ public ProfileSettingsResponseDto getProfile(Long userId) {
     }
 
     @Transactional
-    public void updateProfile(Long userId, ProfileSettingsRequestDto request) {
+    public void updateProfile(Long userId, ProfileSettingsRequestDto request) throws IOException {
+        updateProfile(userId, request, Collections.emptyMap());
+    }
+
+    @Transactional
+    public void updateProfile(Long userId, ProfileSettingsRequestDto request,
+                              Map<Long, MultipartFile> projectHistoryImages) throws IOException {
         User user = userRepository.findById(userId)
                 .orElseThrow(() -> new UserNotFoundException("사용자를 찾을 수 없습니다."));
 
@@ -234,16 +242,18 @@ public void updateProfile(Long userId, ProfileSettingsRequestDto request) {
         if (request.projectHistories() != null) {
             userProjectHistoryRepository.deleteByUserUserId(userId);
             if (!request.projectHistories().isEmpty()) {
-                List<UserProjectHistory> newProjectHistories = request.projectHistories().stream()
-                        .map(projectHistoryDto -> UserProjectHistory.builder()
-                                .user(user)
-                                .projectName(projectHistoryDto.projectName())
-                                .projectImage(projectHistoryDto.projectImage())
-                                .projectDescription(projectHistoryDto.projectDescription())
-                                .startYearMonth(projectHistoryDto.startYearMonth())
-                                .endYearMonth(projectHistoryDto.endYearMonth())
-                                .build())
-                        .collect(Collectors.toList());
+                List<UserProjectHistory> newProjectHistories = new ArrayList<>();
+                for (ProjectHistoryDto projectHistoryDto : request.projectHistories()) {
+                    UserProjectHistory history = UserProjectHistory.builder()
+                            .user(user)
+                            .projectName(projectHistoryDto.projectName())
+                            .projectImage(resolveProjectHistoryImage(projectHistoryDto, projectHistoryImages))
+                            .projectDescription(projectHistoryDto.projectDescription())
+                            .startYearMonth(projectHistoryDto.startYearMonth())
+                            .endYearMonth(projectHistoryDto.endYearMonth())
+                            .build();
+                    newProjectHistories.add(history);
+                }
                 userProjectHistoryRepository.saveAll(newProjectHistories);
             }
         }
@@ -283,5 +293,26 @@ private UserStatus parseUserStatus(String userStatusStr) {
         }
     }
 
+    private String resolveProjectHistoryImage(ProjectHistoryDto dto,
+                                              Map<Long, MultipartFile> projectHistoryImages) throws IOException {
+        if (projectHistoryImages == null || dto == null || dto.userProjectHistoryId() == null) {
+            return dto == null ? null : dto.projectImage();
+        }
+        MultipartFile file = projectHistoryImages.get(dto.userProjectHistoryId());
+        if (file == null || file.isEmpty()) {
+            return dto.projectImage();
+        }
+        return s3Service.uploadFile(file);
+    }
+
+    private String toPresignedProjectImage(String projectImage) {
+        if (projectImage == null || projectImage.isBlank()) {
+            return null;
+        }
+        if (projectImage.startsWith("http://") || projectImage.startsWith("https://")) {
+            return projectImage;
+        }
+        return s3Service.getPresignedGetUrl(projectImage);
+    }
 
-}
\ No newline at end of file
+}