diff --git a/src/main/java/cmc/peerna/domain/PeerFeedback.java b/src/main/java/cmc/peerna/domain/PeerFeedback.java
index 1fe107b..50c87c9 100644
--- a/src/main/java/cmc/peerna/domain/PeerFeedback.java
+++ b/src/main/java/cmc/peerna/domain/PeerFeedback.java
@@ -32,4 +32,8 @@ public class PeerFeedback extends BaseEntity {
     public void updateWriter(Member member) {
         this.writer = member;
     }
+    public void updateWriterToNull(){
+        this.writer = null;
+    }
+
 }
diff --git a/src/main/java/cmc/peerna/domain/PeerGradeResult.java b/src/main/java/cmc/peerna/domain/PeerGradeResult.java
index ab1e387..3dc5bbe 100644
--- a/src/main/java/cmc/peerna/domain/PeerGradeResult.java
+++ b/src/main/java/cmc/peerna/domain/PeerGradeResult.java
@@ -27,4 +27,8 @@ public class PeerGradeResult extends BaseEntity {
     public void updateWriter(Member member) {
         this.writer = member;
     }
+    public void updateWriterToNull(){
+        this.writer = null;
+    }
+
 }
diff --git a/src/main/java/cmc/peerna/domain/PeerTest.java b/src/main/java/cmc/peerna/domain/PeerTest.java
index aff91e7..0eaa159 100644
--- a/src/main/java/cmc/peerna/domain/PeerTest.java
+++ b/src/main/java/cmc/peerna/domain/PeerTest.java
@@ -35,4 +35,8 @@ public class PeerTest extends BaseEntity {
     public void updateWriter(Member member) {
         this.writer = member;
     }
+
+    public void updateWriterToNull(){
+        this.writer = null;
+    }
 }
diff --git a/src/main/java/cmc/peerna/repository/PeerFeedbackRepository.java b/src/main/java/cmc/peerna/repository/PeerFeedbackRepository.java
index 2ead810..98b6342 100644
--- a/src/main/java/cmc/peerna/repository/PeerFeedbackRepository.java
+++ b/src/main/java/cmc/peerna/repository/PeerFeedbackRepository.java
@@ -17,4 +17,8 @@ public interface PeerFeedbackRepository extends JpaRepository<PeerFeedback, Long
     List<PeerFeedback> findTop3ByTargetOrderByCreatedAtDesc(Member target);
 
     Page<PeerFeedback> findAllByTarget(Member target, PageRequest pageRequest);
+
+    List<PeerFeedback> findAllByWriter(Member writer);
+
+    void deleteAllByTarget(Member target);
 }
diff --git a/src/main/java/cmc/peerna/repository/PeerGradeResultRepository.java b/src/main/java/cmc/peerna/repository/PeerGradeResultRepository.java
index ec42b31..340077d 100644
--- a/src/main/java/cmc/peerna/repository/PeerGradeResultRepository.java
+++ b/src/main/java/cmc/peerna/repository/PeerGradeResultRepository.java
@@ -15,7 +15,10 @@ public interface PeerGradeResultRepository extends JpaRepository<PeerGradeResult
     Long countByTargetAndPeerGrade(Member target, PeerGrade peerGrade);
 
     List<PeerGradeResult> findAllByTarget(Member target);
+    List<PeerGradeResult> findAllByWriter(Member writer);
 
     Long countByTarget(Member target);
 
+    void deleteAllByTarget(Member target);
+
 }
diff --git a/src/main/java/cmc/peerna/repository/PeerTestRepository.java b/src/main/java/cmc/peerna/repository/PeerTestRepository.java
index 5f88c23..5f47554 100644
--- a/src/main/java/cmc/peerna/repository/PeerTestRepository.java
+++ b/src/main/java/cmc/peerna/repository/PeerTestRepository.java
@@ -9,7 +9,11 @@
 
 public interface PeerTestRepository extends JpaRepository<PeerTest, Long> {
     List<PeerTest> findALlByTarget(Member target);
+    List<PeerTest> findALlByWriter(Member writer);
     List<PeerTest> findAllByNonMemberUuid(String nonMemberUuid);
 
     Long countByTargetAndAnswerId(Member target, Long answerId);
+
+    void deleteAllByTarget(Member target);
+
 }
diff --git a/src/main/java/cmc/peerna/service/MemberService.java b/src/main/java/cmc/peerna/service/MemberService.java
index 06498bd..2763aec 100644
--- a/src/main/java/cmc/peerna/service/MemberService.java
+++ b/src/main/java/cmc/peerna/service/MemberService.java
@@ -23,4 +23,6 @@ public interface MemberService {
     MemberRequestDto.profileUpdateDto updateMemberProfile(Member member, MemberRequestDto.profileUpdateDto request);
 
     String regenerateAccessToken(RefreshToken refreshToken);
+
+    void withdrawal(Member member);
 }
diff --git a/src/main/java/cmc/peerna/service/serviceImpl/MemberServiceImpl.java b/src/main/java/cmc/peerna/service/serviceImpl/MemberServiceImpl.java
index eeb361f..4132d3d 100644
--- a/src/main/java/cmc/peerna/service/serviceImpl/MemberServiceImpl.java
+++ b/src/main/java/cmc/peerna/service/serviceImpl/MemberServiceImpl.java
@@ -3,13 +3,11 @@
 import cmc.peerna.apiResponse.code.ResponseStatus;
 import cmc.peerna.apiResponse.exception.handler.MemberException;
 import cmc.peerna.converter.MemberConverter;
-import cmc.peerna.domain.Member;
-import cmc.peerna.domain.PeerGradeResult;
+import cmc.peerna.domain.*;
 import cmc.peerna.domain.enums.SocialType;
 import cmc.peerna.jwt.JwtProvider;
 import cmc.peerna.redis.domain.RefreshToken;
-import cmc.peerna.repository.MemberRepository;
-import cmc.peerna.repository.PeerGradeResultRepository;
+import cmc.peerna.repository.*;
 import cmc.peerna.service.MemberService;
 import cmc.peerna.web.dto.requestDto.MemberRequestDto;
 import cmc.peerna.web.dto.responseDto.MemberResponseDto;
@@ -29,7 +27,11 @@
 public class MemberServiceImpl implements MemberService {
 
     private final MemberRepository memberRepository;
+    private final SelfTestRepository selfTestRepository;
+    private final SelfTestResultRepository selfTestResultRepository;
     private final PeerGradeResultRepository peerGradeResultRepository;
+    private final PeerFeedbackRepository peerFeedbackRepository;
+    private final PeerTestRepository peerTestRepository;
 
     private final JwtProvider jwtProvider;
 
@@ -112,4 +114,30 @@ public String regenerateAccessToken(RefreshToken refreshToken) {
         String accessToken = jwtProvider.createAccessToken(member.getId(), member.getSocialType().toString(), member.getSocialId(), Arrays.asList(new SimpleGrantedAuthority("USER")));
         return accessToken;
     }
+
+    @Override
+    @Transactional
+    public void withdrawal(Member member) {
+        selfTestRepository.deleteAllByWriter(member);
+        selfTestResultRepository.deleteByMember(member);
+        peerTestRepository.deleteAllByTarget(member);
+        peerFeedbackRepository.deleteAllByTarget(member);
+        peerGradeResultRepository.deleteAllByTarget(member);
+
+        List<PeerTest> peerTestListByWriter = peerTestRepository.findALlByWriter(member);
+        for (PeerTest peerTest : peerTestListByWriter) {
+            peerTest.updateWriterToNull();
+        }
+
+        List<PeerFeedback> peerFeedbackListByWriter = peerFeedbackRepository.findAllByWriter(member);
+        for (PeerFeedback peerFeedback : peerFeedbackListByWriter) {
+            peerFeedback.updateWriterToNull();
+        }
+
+        List<PeerGradeResult> peerGradeResultListByWriter = peerGradeResultRepository.findAllByWriter(member);
+        for (PeerGradeResult peerGradeResult : peerGradeResultListByWriter) {
+            peerGradeResult.updateWriterToNull();
+        }
+        memberRepository.deleteById(member.getId());
+    }
 }
diff --git a/src/main/java/cmc/peerna/web/controller/MemberController.java b/src/main/java/cmc/peerna/web/controller/MemberController.java
index 5e905ba..f7f1bba 100644
--- a/src/main/java/cmc/peerna/web/controller/MemberController.java
+++ b/src/main/java/cmc/peerna/web/controller/MemberController.java
@@ -3,6 +3,7 @@
 import cmc.peerna.apiResponse.code.ResponseStatus;
 import cmc.peerna.apiResponse.exception.handler.MemberException;
 import cmc.peerna.apiResponse.response.ResponseDto;
+import cmc.peerna.converter.MemberConverter;
 import cmc.peerna.domain.Member;
 import cmc.peerna.domain.enums.SocialType;
 import cmc.peerna.domain.enums.UserRole;
@@ -257,6 +258,17 @@ ResponseDto<MemberResponseDto.memberBasicInfoDto> getMemberBasicInfo(@AuthMember
     }
 
 
-
+    @Operation(summary = "회원탈퇴 API ✔️🔑", description = "회원탈퇴 API입니다.")
+    @ApiResponses({
+            @ApiResponse(responseCode = "2200", description = "BAD_REQUEST, 존재하지 않는 유저를 조회한 경우.")
+    })
+    @Parameters({
+            @Parameter(name = "member", hidden = true)
+    })
+    @PostMapping("/member/withdrawal")
+    ResponseDto<MemberResponseDto.MemberStatusDto> withdrawal(@AuthMember Member member) {
+        memberService.withdrawal(member);
+        return ResponseDto.of(MemberConverter.toMemberStatusDto(member.getId(), "회원탈퇴 완료"));
+    }
 }