diff --git a/src/main/java/com/codiary/backend/global/converter/PostConverter.java b/src/main/java/com/codiary/backend/global/converter/PostConverter.java
index b17d2c93..5a5a4354 100644
--- a/src/main/java/com/codiary/backend/global/converter/PostConverter.java
+++ b/src/main/java/com/codiary/backend/global/converter/PostConverter.java
@@ -201,6 +201,7 @@ public static PostResponseDTO.TeamPostInProjectPreviewDTO toTeamPostInProjectPre
         return PostResponseDTO.TeamPostInProjectPreviewDTO.builder()
                 .projectId(post.getProject().getProjectId())
                 .teamId(post.getTeam().getTeamId())
+                .memberId(post.getMember().getMemberId())
                 .postId(post.getPostId())
                 .teamId(post.getTeam() != null ? post.getTeam().getTeamId() : null)
                 .postTitle(post.getPostTitle())
@@ -238,6 +239,7 @@ public static PostResponseDTO.MemberPostInTeamPreviewDTO toMemberPostInTeamPrevi
                 .memberId(post.getMember().getMemberId())
                 .postId(post.getPostId())
                 .teamId(post.getTeam() != null ? post.getTeam().getTeamId() : null)
+                .projectId(post.getProject().getProjectId())
                 .postTitle(post.getPostTitle())
                 .postStatus(post.getPostStatus())
                 .postCategory(post.getPostCategory())
diff --git a/src/main/java/com/codiary/backend/global/domain/entity/Post.java b/src/main/java/com/codiary/backend/global/domain/entity/Post.java
index 92b69758..e74e1518 100644
--- a/src/main/java/com/codiary/backend/global/domain/entity/Post.java
+++ b/src/main/java/com/codiary/backend/global/domain/entity/Post.java
@@ -76,6 +76,8 @@ public void setTeam(Team team) {
     this.team = team;
   }
 
+  public void setProject(Project project) { this.project = project;}
+
   public void update(PostRequestDTO.UpdatePostDTO request) {
     this.postTitle = request.getPostTitle();
     this.postBody = request.getPostBody();
diff --git a/src/main/java/com/codiary/backend/global/service/PostService/PostCommandService.java b/src/main/java/com/codiary/backend/global/service/PostService/PostCommandService.java
index 60b1ef60..2438003f 100644
--- a/src/main/java/com/codiary/backend/global/service/PostService/PostCommandService.java
+++ b/src/main/java/com/codiary/backend/global/service/PostService/PostCommandService.java
@@ -6,7 +6,7 @@
 public interface PostCommandService {
 
     // 포스트 생성
-    Post createPost(Long memberId, Long teamId,PostRequestDTO.CreatePostRequestDTO request);
+    Post createPost(Long memberId, Long teamId, Long projectId, PostRequestDTO.CreatePostRequestDTO request);
     //포스트 수정
     Post updatePost(Long memberId, Long postId, PostRequestDTO.UpdatePostDTO request);
     //포스트 삭제
diff --git a/src/main/java/com/codiary/backend/global/service/PostService/PostCommandServiceImpl.java b/src/main/java/com/codiary/backend/global/service/PostService/PostCommandServiceImpl.java
index 5fa670b2..9382ec46 100644
--- a/src/main/java/com/codiary/backend/global/service/PostService/PostCommandServiceImpl.java
+++ b/src/main/java/com/codiary/backend/global/service/PostService/PostCommandServiceImpl.java
@@ -3,10 +3,12 @@
 import com.codiary.backend.global.converter.PostConverter;
 import com.codiary.backend.global.domain.entity.Member;
 import com.codiary.backend.global.domain.entity.Post;
+import com.codiary.backend.global.domain.entity.Project;
 import com.codiary.backend.global.domain.entity.Team;
 import com.codiary.backend.global.domain.entity.mapping.Authors;
 import com.codiary.backend.global.repository.MemberRepository;
 import com.codiary.backend.global.repository.PostRepository;
+import com.codiary.backend.global.repository.ProjectRepository;
 import com.codiary.backend.global.repository.TeamRepository;
 import com.codiary.backend.global.web.dto.Post.PostRequestDTO;
 import lombok.RequiredArgsConstructor;
@@ -25,10 +27,11 @@ public class PostCommandServiceImpl implements PostCommandService{
 
     private final PostRepository postRepository;
     private final MemberRepository memberRepository;
-    private final TeamRepository teamRepository; // 추가
+    private final TeamRepository teamRepository;
+    private final ProjectRepository projectRepository;
 
     @Override
-    public Post createPost(Long memberId, Long teamId, PostRequestDTO.CreatePostRequestDTO request) {
+    public Post createPost(Long memberId, Long teamId, Long projectId, PostRequestDTO.CreatePostRequestDTO request) {
 
         Post newPost = PostConverter.toPost(request);
 
@@ -38,8 +41,12 @@ public Post createPost(Long memberId, Long teamId, PostRequestDTO.CreatePostRequ
         Team getTeam = teamRepository.findById(teamId)
                 .orElseThrow(() -> new IllegalArgumentException("Team not found"));
 
+        Project getProject = projectRepository.findById(projectId)
+                .orElseThrow(() -> new IllegalArgumentException("Project not found"));
+
         newPost.setMember(getMember);
         newPost.setTeam(getTeam);
+        newPost.setProject(getProject);
 
         Post savedPost = postRepository.save(newPost);
 
diff --git a/src/main/java/com/codiary/backend/global/web/controller/PostController.java b/src/main/java/com/codiary/backend/global/web/controller/PostController.java
index 3879cf9e..a480a9e9 100644
--- a/src/main/java/com/codiary/backend/global/web/controller/PostController.java
+++ b/src/main/java/com/codiary/backend/global/web/controller/PostController.java
@@ -42,7 +42,8 @@ public ApiResponse<PostResponseDTO.CreatePostResultDTO> createPost(
             @RequestBody PostRequestDTO.CreatePostRequestDTO request
             ){
         Long teamId = 1L;
-        Post newPost = postCommandService.createPost(memberId, teamId, request);
+        Long projectId = 1L;
+        Post newPost = postCommandService.createPost(memberId, teamId, projectId, request);
         return ApiResponse.onSuccess(
                 SuccessStatus.POST_OK,
                 PostConverter.toCreateResultDTO(newPost)
diff --git a/src/main/java/com/codiary/backend/global/web/dto/Post/PostRequestDTO.java b/src/main/java/com/codiary/backend/global/web/dto/Post/PostRequestDTO.java
index 2915f40e..0a8b6b67 100644
--- a/src/main/java/com/codiary/backend/global/web/dto/Post/PostRequestDTO.java
+++ b/src/main/java/com/codiary/backend/global/web/dto/Post/PostRequestDTO.java
@@ -17,6 +17,7 @@ public class PostRequestDTO {
     @NoArgsConstructor
     public static class CreatePostRequestDTO {
         private Long teamId;
+        private Long projectId;
         private String postTitle;
         private String postBody;
         private Boolean postStatus;