diff --git a/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/PostController.java b/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/PostController.java
index 2758881..1a7aed8 100644
--- a/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/PostController.java
+++ b/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/PostController.java
@@ -28,7 +28,7 @@ public PostController(PostService postService) {
     @PostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     public ResponseEntity<String> postSave(
             @RequestPart("post") PostSaveReqDto postSaveReqDto,
-            @RequestPart("imgUrl") MultipartFile imgUrl,
+            @RequestPart(value = "imgUrl", required = false) MultipartFile imgUrl,
             Principal principal) throws IOException {
         postService.postSave(postSaveReqDto, imgUrl, principal);
         return new ResponseEntity<>("Successful Post Save", HttpStatus.CREATED);
diff --git a/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/response/PostInfoResDto.java b/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/response/PostInfoResDto.java
index 16f8600..019c970 100644
--- a/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/response/PostInfoResDto.java
+++ b/src/main/java/net/skhu/likelion12thteam03be/post/api/dto/response/PostInfoResDto.java
@@ -12,6 +12,7 @@
 @Builder
 public record PostInfoResDto(
         Long postId,
+        String nickname,
         String title,
         String content,
         String imgUrl,
@@ -26,6 +27,7 @@ public record PostInfoResDto(
     public static PostInfoResDto from(Post post) {
         return PostInfoResDto.builder()
                 .postId(post.getPostId())
+                .nickname(post.getUser().getNickname())
                 .title(post.getTitle())
                 .content(post.getContent())
                 .location(post.getLocation())
diff --git a/src/main/java/net/skhu/likelion12thteam03be/post/application/PostService.java b/src/main/java/net/skhu/likelion12thteam03be/post/application/PostService.java
index dc6fdda..f49ad24 100644
--- a/src/main/java/net/skhu/likelion12thteam03be/post/application/PostService.java
+++ b/src/main/java/net/skhu/likelion12thteam03be/post/application/PostService.java
@@ -41,11 +41,17 @@ public class PostService {
     private final UserRepository userRepository;
 
     @Transactional
-    public void postSave(PostSaveReqDto postSaveReqDto, @RequestPart(required = false) MultipartFile multipartFile, Principal principal) throws IOException {
+    public void postSave(PostSaveReqDto postSaveReqDto, @RequestPart(required = false) MultipartFile multipartFile, Principal principal) {
         String loginId = principal.getName();
 
-        String imgUrl = s3Service.upload(multipartFile, "post");
-        
+//        String imgUrl = s3Service.upload(multipartFile, "post");
+        String imgUrl = null;
+        try {
+            imgUrl = (multipartFile == null) ? s3Service.upload(multipartFile, "post") : null;
+        } catch (IOException e) {
+            imgUrl = null;
+        }
+
         User user = userRepository.findByLoginId(loginId)
                 .orElseThrow(() -> new IllegalArgumentException("해당 유저가 존재하지 않습니다. loginId = " + loginId));
 
diff --git a/src/main/java/net/skhu/likelion12thteam03be/post/domain/Post.java b/src/main/java/net/skhu/likelion12thteam03be/post/domain/Post.java
index 4783ba2..0011bbc 100644
--- a/src/main/java/net/skhu/likelion12thteam03be/post/domain/Post.java
+++ b/src/main/java/net/skhu/likelion12thteam03be/post/domain/Post.java
@@ -1,5 +1,6 @@
 package net.skhu.likelion12thteam03be.post.domain;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
@@ -52,7 +53,8 @@ public class Post extends Time {
     private User user;
 
     @Builder
-    public Post(String title, String content, Location location, Integer time, Integer price, Category category, List<Mood> moods, String imgUrl, User user) {
+    public Post(User user, String title, String content, Location location, Integer time, Integer price, Category category, List<Mood> moods, String imgUrl) {
+        this.user = user;
         this.title = title;
         this.content = content;
         this.location = location;
@@ -61,7 +63,6 @@ public Post(String title, String content, Location location, Integer time, Integ
         this.category = category;
         this.moods = moods;
         this.imgUrl = imgUrl;
-        this.user = user;
     }
 
     public void update(Location location, Category category, PostUpdateReqDto postUpdateReqDto, List<Mood> moods, String imgUrl) {