diff --git a/src/main/java/cmc/peerna/domain/Member.java b/src/main/java/cmc/peerna/domain/Member.java
index ae87751..f37dd6a 100644
--- a/src/main/java/cmc/peerna/domain/Member.java
+++ b/src/main/java/cmc/peerna/domain/Member.java
@@ -37,7 +37,8 @@ public class Member extends BaseEntity {
     @Enumerated(EnumType.STRING)
     private Part part;
 
-    private Long totalScore;
+    @ColumnDefault("0")
+    private Integer totalScore;
 
     private String socialId;
 
@@ -65,4 +66,6 @@ public void setBasicInfo(MemberRequestDto.basicInfoDTO request) {
     public void setTestType(TestType selfTestType) {
         this.selfTestType=selfTestType;
     }
+
+    public void updateTotalScore(Integer totalScore){ this.totalScore=totalScore;}
 }
diff --git a/src/main/java/cmc/peerna/domain/enums/PeerGrade.java b/src/main/java/cmc/peerna/domain/enums/PeerGrade.java
index 14e9250..c52a194 100644
--- a/src/main/java/cmc/peerna/domain/enums/PeerGrade.java
+++ b/src/main/java/cmc/peerna/domain/enums/PeerGrade.java
@@ -11,6 +11,7 @@ public enum PeerGrade {
     GOOD(70),
     AVERAGE(56),
     BELOW_AVERAGE(42),
-    POOR(28);
+    POOR(28),
+    WORST(14);
     private final int score;
 }
diff --git a/src/main/java/cmc/peerna/service/MemberService.java b/src/main/java/cmc/peerna/service/MemberService.java
index 85bb38d..d4d7e91 100644
--- a/src/main/java/cmc/peerna/service/MemberService.java
+++ b/src/main/java/cmc/peerna/service/MemberService.java
@@ -13,4 +13,6 @@ public interface MemberService {
     void saveMemberBasicInfo(Member member, MemberRequestDto.basicInfoDTO request);
 
     Member findById(Long memberId);
+
+    void updateTotalScore(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 4df3763..7e1abda 100644
--- a/src/main/java/cmc/peerna/service/serviceImpl/MemberServiceImpl.java
+++ b/src/main/java/cmc/peerna/service/serviceImpl/MemberServiceImpl.java
@@ -81,8 +81,20 @@ public Member findById(Long memberId) {
         return memberRepository.findById(memberId).orElseThrow(() -> new MemberException(ResponseStatus.MEMBER_NOT_FOUND));
     }
 
-//    public Long updateTotalScore(Member member) {
-//        List<PeerGradeResult> peerGradeResultList = peerGradeResultRepository.findAllByTarget(member);
-//
-//    }
+    @Override
+    @Transactional
+    public void updateTotalScore(Member member) {
+        Integer totalScore = 0;
+        List<PeerGradeResult> peerGradeResultList = peerGradeResultRepository.findAllByTarget(member);
+        if (peerGradeResultList.size() < 3) {
+            return;
+        }
+        int scoreSum=0;
+        for (PeerGradeResult peerGradeResult : peerGradeResultList) {
+            scoreSum += peerGradeResult.getPeerGrade().getScore();
+        }
+        totalScore = scoreSum / peerGradeResultList.size();
+        if(totalScore>100) totalScore=100;
+        member.updateTotalScore(totalScore);
+    }
 }
diff --git a/src/main/java/cmc/peerna/service/serviceImpl/RootServiceImpl.java b/src/main/java/cmc/peerna/service/serviceImpl/RootServiceImpl.java
index 4af4b97..c4f92f6 100644
--- a/src/main/java/cmc/peerna/service/serviceImpl/RootServiceImpl.java
+++ b/src/main/java/cmc/peerna/service/serviceImpl/RootServiceImpl.java
@@ -8,7 +8,6 @@
 import cmc.peerna.domain.enums.TestType;
 import cmc.peerna.repository.*;
 import cmc.peerna.service.RootService;
-import cmc.peerna.utils.MemberCalculator;
 import cmc.peerna.utils.TestResultCalculator;
 import cmc.peerna.web.dto.responseDto.MemberResponseDto;
 import cmc.peerna.web.dto.responseDto.RootResponseDto;
@@ -32,7 +31,6 @@ public class RootServiceImpl implements RootService {
     private final PeerGradeResultRepository peerGradeResultRepository;
     private final PeerTestRepository peerTestRepository;
     private final TestResultCalculator testResultCalculator;
-    private final MemberCalculator memberCalculator;
 
     @Override
     public List<Long> getcolorAnswerIdList(Member member, List<Long> selfTestAnswerIdList) {
@@ -95,7 +93,6 @@ public RootResponseDto.MypageDto getMyPageDto(Member member) {
         List<TestResponseDto.totalEvaluation> top3TotalEvaluation = getTop3TotalEvaluation(member);
 
         List<PeerGradeResult> peerGradeResultList = peerGradeResultRepository.findAllByTarget(member);
-        int totalScore = memberCalculator.getTotalScore(peerGradeResultList);
 
         List<PeerFeedback> peerFeedbackList = peerFeedbackRepository.findTop3ByTargetOrderByCreatedAtDesc(member);
 
@@ -110,7 +107,7 @@ public RootResponseDto.MypageDto getMyPageDto(Member member) {
                 .selfTestCardList(selfTestCardList)
                 .peerCardList(peerCardList)
                 .top3Evaluation(top3TotalEvaluation)
-                .totalScore(totalScore)
+                .totalScore(member.getTotalScore())
                 .peerFeedbackList(TestConverter.peerFeedbackListToStringList(peerFeedbackList))
                 .selfTestAnswerIdList(selfTestAnswerIdList)
                 .colorAnswerIdList(colorAnswerIdList)
diff --git a/src/main/java/cmc/peerna/service/serviceImpl/TestServiceImpl.java b/src/main/java/cmc/peerna/service/serviceImpl/TestServiceImpl.java
index dac4604..e0f0a3a 100644
--- a/src/main/java/cmc/peerna/service/serviceImpl/TestServiceImpl.java
+++ b/src/main/java/cmc/peerna/service/serviceImpl/TestServiceImpl.java
@@ -156,6 +156,7 @@ public void savePeerGradeResult(Member writer, Member target, PeerGrade peerGrad
                 .nonMemberUuid(uuid.toString())
                 .build()
         );
+
     }
 
     @Override
diff --git a/src/main/java/cmc/peerna/utils/MemberCalculator.java b/src/main/java/cmc/peerna/utils/MemberCalculator.java
deleted file mode 100644
index 1beedc6..0000000
--- a/src/main/java/cmc/peerna/utils/MemberCalculator.java
+++ /dev/null
@@ -1,14 +0,0 @@
-package cmc.peerna.utils;
-
-import cmc.peerna.domain.PeerGradeResult;
-import org.springframework.stereotype.Component;
-
-import java.util.List;
-
-@Component
-public class MemberCalculator {
-    public int getTotalScore(List<PeerGradeResult> peerGradeResultList) {
-        // 기획 확정 후 구현
-        return 0;
-    }
-}
diff --git a/src/main/java/cmc/peerna/web/controller/TestController.java b/src/main/java/cmc/peerna/web/controller/TestController.java
index 3bdc1a4..67fbc16 100644
--- a/src/main/java/cmc/peerna/web/controller/TestController.java
+++ b/src/main/java/cmc/peerna/web/controller/TestController.java
@@ -98,6 +98,7 @@ public ResponseDto<TestResponseDto.peerTestIdResponseDto> savePeerTest(@RequestP
 //        Member writer = Member.builder()
 //                .id(0L).build();
         testService.savePeerTest(null, memberService.findById(targetId), requestDto);
+        memberService.updateTotalScore(memberService.findById(targetId));
         return ResponseDto.of(TestResponseDto.peerTestIdResponseDto.builder()
                 .peerTestId(targetId).build());
     }
diff --git a/src/main/java/cmc/peerna/web/dto/responseDto/MemberResponseDto.java b/src/main/java/cmc/peerna/web/dto/responseDto/MemberResponseDto.java
index 1842cab..d17234d 100644
--- a/src/main/java/cmc/peerna/web/dto/responseDto/MemberResponseDto.java
+++ b/src/main/java/cmc/peerna/web/dto/responseDto/MemberResponseDto.java
@@ -39,7 +39,7 @@ public static class MemberSimpleInfoDto{
         private Part part;
         private Job job;
 
-        private Long totalScore;
+        private Integer totalScore;
         private String oneLiner;
     }
 
diff --git a/src/main/java/cmc/peerna/web/dto/responseDto/RootResponseDto.java b/src/main/java/cmc/peerna/web/dto/responseDto/RootResponseDto.java
index 26a9b05..0f22106 100644
--- a/src/main/java/cmc/peerna/web/dto/responseDto/RootResponseDto.java
+++ b/src/main/java/cmc/peerna/web/dto/responseDto/RootResponseDto.java
@@ -27,7 +27,7 @@ public static class MypageDto{
         private List<TestResponseDto.totalEvaluation> top3Evaluation;
 
         // 종합점수
-        private int totalScore;
+        private Integer totalScore;
 
         // 유저 피드백 최신 3개
         List<String> peerFeedbackList;