diff --git a/ad/src/main/java/com/cnu/ad/model/Advertisment.java b/ad/src/main/java/com/cnu/ad/model/Advertisment.java
new file mode 100644
index 0000000..c9eb464
--- /dev/null
+++ b/ad/src/main/java/com/cnu/ad/model/Advertisment.java
@@ -0,0 +1,2 @@
+package com.cnu.ad.model;public record Advertisment() {
+}
diff --git a/ad/src/main/java/com/cnu/ad/service/PostService.java b/ad/src/main/java/com/cnu/ad/service/PostService.java
new file mode 100644
index 0000000..f4bfe3f
--- /dev/null
+++ b/ad/src/main/java/com/cnu/ad/service/PostService.java
@@ -0,0 +1,2 @@
+package com.cnu.ad.service;public class PostService {
+}
diff --git a/ad/src/main/resources/application.yml b/ad/src/main/resources/application.yml
new file mode 100644
index 0000000..b92eded
--- /dev/null
+++ b/ad/src/main/resources/application.yml
@@ -0,0 +1,32 @@
+spring:
+        # H2 Setting Info (H2 Console? ???? ?? ???? ??)
+        h2:
+        console:
+        enabled: true  # H2 Console? ???? ?? (H2 Console? H2 Database? UI? ????? ??)
+        path: /h2-console  # H2 Console? Path
+        #   Database Setting Info (Database? H2? ???? ?? H2?? ?? ??)
+        datasource:
+        driver-class-name: org.h2.Driver  # Database? H2? ?????.
+        url: jdbc:h2:mem:devblog # H2 ?? ??
+        username: sa  # H2 ?? ? ??? username ?? (??? ??? ??)
+        password:  # H2 ?? ? ??? password ?? (??? ??? ??)
+
+        jpa:
+        hibernate:
+        ddl-auto: create # ??????? ??? ? ??????? ????? ?? ??? ??
+        properties:
+        hibernate:
+        format_sql: true # ???? query? ???
+
+        resilience4j:
+        circuitbreaker:
+        instances:
+        ad:
+        slidingWindowType: COUNT_BASED
+        slidingWindowSize: 5
+        failureRateThreshold: 50 # 에러 비율로 해당 값 이상으로 에러 발생시 서킷이 open
+        slowCallRateThreshold: 100
+        minimumNumberOfCalls: 3 # circuitbreaker가 에러비율 또는 slow call 비율을 계산하기 전에 요구되는 최소 호출 횟수
+
+        logging.level:
+        org.hibernate.SQL: debug
\ No newline at end of file
diff --git a/post/src/main/java/com/cnu/post/controller/PostController.java b/post/src/main/java/com/cnu/post/controller/PostController.java
new file mode 100644
index 0000000..b5e7d15
--- /dev/null
+++ b/post/src/main/java/com/cnu/post/controller/PostController.java
@@ -0,0 +1,2 @@
+package com.cnu.post.controller;public class PostController {
+}
diff --git a/src/main/java/com/cnu/real_coding_server/controller/PostController.java b/src/main/java/com/cnu/real_coding_server/controller/PostController.java
index 8d7b907..7e086fb 100644
--- a/src/main/java/com/cnu/real_coding_server/controller/PostController.java
+++ b/src/main/java/com/cnu/real_coding_server/controller/PostController.java
@@ -1,7 +1,47 @@
 package com.cnu.real_coding_server.controller;
 
-import org.springframework.web.bind.annotation.RestController;
+import com.cnu.real_coding_server.entity.Post;
+import com.cnu.real_coding_server.entity.Project;
+import com.cnu.real_coding_server.model.request.PostRequest;
+import com.cnu.real_coding_server.model.request.ProjectRequest;
+import com.cnu.real_coding_server.service.ProjectService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
 
 @RestController
-public class PostController {
-}
+@RequestMapping("/projects")
+@RequiredArgsConstructor
+public class ProjectController {
+    private final ProjectService projectService;
+
+    @PostMapping
+    public ResponseEntity<Project> createProject(@RequestBody ProjectRequest projectRequest) {
+        return ResponseEntity.ok(projectService.createProject(projectRequest));
+    }
+
+    @GetMapping
+    public ResponseEntity<List<Project>> getProjects() {
+        return ResponseEntity.ok(projectService.getProjects());
+    }
+
+    @GetMapping("/{projectId}")
+    public ResponseEntity<Project> getProject(@PathVariable("projectId") Integer projectId) {
+        return ResponseEntity.ok(projectService.getProject(projectId).orElse(null));
+    }
+
+    @PutMapping("/{projectId}")
+    public ResponseEntity<Project> updateProject(@PathVariable("projectId") Integer projectId, ProjectRequest projectRequest) {
+        return ResponseEntity.ok(projectService.updateProject(projectId, projectRequest).orElse(null));
+    }
+
+    @DeleteMapping("/{projectId}")
+    public ResponseEntity<Void> deleteProject(@PathVariable("projectId") Integer projectId) {
+        projectService.deleteProject(projectId);
+
+        return ResponseEntity.noContent().build();
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/com/cnu/real_coding_server/entity/Post.java b/src/main/java/com/cnu/real_coding_server/entity/Post.java
index 5cfa06a..bb99748 100644
--- a/src/main/java/com/cnu/real_coding_server/entity/Post.java
+++ b/src/main/java/com/cnu/real_coding_server/entity/Post.java
@@ -20,6 +20,7 @@ public class Post extends BaseEntity {
     @Setter
     private String contents;
 
+    @Setter
     @Enumerated(EnumType.STRING)
     private Tag tag;
 
diff --git a/src/main/java/com/cnu/real_coding_server/repository/PostRepository.java b/src/main/java/com/cnu/real_coding_server/repository/PostRepository.java
index 0366c87..ee40fc2 100644
--- a/src/main/java/com/cnu/real_coding_server/repository/PostRepository.java
+++ b/src/main/java/com/cnu/real_coding_server/repository/PostRepository.java
@@ -1,6 +1,7 @@
 package com.cnu.real_coding_server.repository;
 
 import com.cnu.real_coding_server.entity.Post;
+import com.cnu.real_coding_server.model.request.PostRequest;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
@@ -10,4 +11,5 @@ public interface PostRepository extends JpaRepository<Post, Integer> {
 //    List<Post> findAll();
 //    Optional<Post> findById(Integer postId);
 //    void delete(Post post);
+
 }
diff --git a/src/main/java/com/cnu/real_coding_server/service/PostService.java b/src/main/java/com/cnu/real_coding_server/service/PostService.java
deleted file mode 100644
index f79fbb8..0000000
--- a/src/main/java/com/cnu/real_coding_server/service/PostService.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.cnu.real_coding_server.service;
-
-import org.springframework.stereotype.Service;
-
-@Service
-public class PostService {
-}
diff --git a/src/main/java/com/cnu/real_coding_server/service/ProjectService.java b/src/main/java/com/cnu/real_coding_server/service/ProjectService.java
new file mode 100644
index 0000000..0e9c2a5
--- /dev/null
+++ b/src/main/java/com/cnu/real_coding_server/service/ProjectService.java
@@ -0,0 +1,45 @@
+package com.cnu.real_coding_server.service;
+
+import com.cnu.real_coding_server.entity.Project;
+import com.cnu.real_coding_server.model.request.ProjectRequest;
+import com.cnu.real_coding_server.repository.ProjectRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+@RequiredArgsConstructor
+public class ProjectService {
+    private final ProjectRepository projectRepository;
+
+    public Project createProject(ProjectRequest projectRequest) {
+        return projectRepository.save(projectRequest.toEntity());
+    }
+
+    public List<Project> getProjects() {
+        return projectRepository.findAll();
+    }
+
+    public Optional<Project> getProject(Integer projectId) {
+        return projectRepository.findById(projectId);
+    }
+
+    public Optional<Project> updateProject(Integer projectId, ProjectRequest projectRequest) {
+        return projectRepository.findById(projectId)
+                .map(project -> {
+                    project.setTitle(projectRequest.getTitle());
+                    project.setSummary(projectRequest.getSummary());
+                    project.setDescription(projectRequest.getDescription());
+                    project.setStartDate(projectRequest.getStartDate());
+                    project.setEndDate(projectRequest.getEndDate());
+                    return projectRepository.save(project);
+                });
+    }
+
+    public void deleteProject(Integer projectId) {
+        projectRepository.findById(projectId)
+                .ifPresent(projectRepository::delete);
+    }
+}
\ No newline at end of file