diff --git a/src/main/java/com/team20/t4/post/PostController.java b/src/main/java/com/team20/t4/post/PostController.java
index 56f9475..060d0f6 100644
--- a/src/main/java/com/team20/t4/post/PostController.java
+++ b/src/main/java/com/team20/t4/post/PostController.java
@@ -1,5 +1,6 @@
 package com.team20.t4.post;
 
+import com.team20.t4.common.responseFormat.OnlyResponseString;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.*;
 
@@ -20,4 +21,15 @@ public PostResponseDto getSinglePost(@PathVariable Long postId){
         return postService.getSinglePost(postId);
     }
 
+    @PostMapping("/post/{postId}")
+    public Long updatePost(@PathVariable Long postId, @RequestBody PostUpdateRequestDto requestDto){
+        return postService.updatePost(postId, requestDto);
+    }
+
+    @DeleteMapping("/post/{postId}")
+    public OnlyResponseString deletePost(@PathVariable Long postId){
+        postService.deletePost(postId);
+        return new OnlyResponseString("Post 삭제에 성공했습니다.");
+    }
+
 }
diff --git a/src/main/java/com/team20/t4/post/PostService.java b/src/main/java/com/team20/t4/post/PostService.java
index 0fbb432..0b8e822 100644
--- a/src/main/java/com/team20/t4/post/PostService.java
+++ b/src/main/java/com/team20/t4/post/PostService.java
@@ -33,11 +33,26 @@ private Post getPostOrElseThrowRequestException(Long postId) {
                 .orElseThrow(() -> new RequestException(RequestErrorCode.NOT_FOUND, "존재하지 않는 글입니다."));
     }
 
-    // 수정
+    @Transactional
+    public Long updatePost(Long postId, PostUpdateRequestDto requestDto) throws RequestException{
+        checkPostExists(postId);
+        Post updatedPost = postRepository.save(requestDto.toEntity(postId));
+        return updatedPost.getId();
+    }
+
+    private void checkPostExists(Long postId) {
+        if(!postRepository.existsById(postId))
+            throw new RequestException(RequestErrorCode.NOT_FOUND, "요청한 Post가 존재하지 않습니다.");
+    }
+
+    @Transactional
+    public void deletePost(Long postId){
+        // plan이 진행중이면 plan도 삭제
+        // plan이 완료이면 plan은 삭제하지 않음
+        postRepository.deleteById(postId);
+    }
+
 
-    
-    // 삭제
-    
     // 리스트 조회
     // 검색 기준 : 위치
     // 정렬 기준 : 최근 수정순
diff --git a/src/main/java/com/team20/t4/post/PostUpdateRequestDto.java b/src/main/java/com/team20/t4/post/PostUpdateRequestDto.java
new file mode 100644
index 0000000..3d02ea5
--- /dev/null
+++ b/src/main/java/com/team20/t4/post/PostUpdateRequestDto.java
@@ -0,0 +1,30 @@
+package com.team20.t4.post;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.Size;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+public class PostUpdateRequestDto {
+    private Long postId;
+    @Size(max = 255, message = "title은 255자 이하여야합니다.")
+    private String title;
+    @Size(max = 1000, message = "content는 1000자 이하여야합니다.")
+    private String content;
+    @Size(max = 255, message = "chatRoomLink는 255자 이하여야합니다.")
+    private String chatRoomLink;
+    //    private PlanSaveRequestDto plan;
+
+    public Post toEntity(Long postId) {
+        return Post.builder()
+                .id(postId)
+                .title(title)
+                .content(content)
+                .chatRoomLink(chatRoomLink)
+                .build();
+    }
+}