diff --git a/src/main/java/umc/kkijuk/server/auth/controller/KakaoAuthController.java b/src/main/java/umc/kkijuk/server/auth/controller/KakaoAuthController.java
index fc6b8af..b2e4a96 100644
--- a/src/main/java/umc/kkijuk/server/auth/controller/KakaoAuthController.java
+++ b/src/main/java/umc/kkijuk/server/auth/controller/KakaoAuthController.java
@@ -31,7 +31,7 @@ public ResponseEntity<Map<String, Object>> kakaoCallback(@RequestParam("code") S
             Map<String, Object> tokens = new HashMap<>();
             tokens.put("Token", kakaoAuthService.generateTokens(member));
 
-            log.info("카카오 로그인 성공: 사용자 이름={}, 카카오 ID={}", member.getName(), member.getKakaoId());
+            log.info("카카오 로그인 성공: 사용자 이름={}, 카카오 ID={}", member.getName(), member.getSocialId());
             return ResponseEntity.ok(tokens);
 
         } catch (Exception e) {
diff --git a/src/main/java/umc/kkijuk/server/auth/jwt/JwtFilter.java b/src/main/java/umc/kkijuk/server/auth/jwt/JwtFilter.java
index 5e50fc3..ce00898 100644
--- a/src/main/java/umc/kkijuk/server/auth/jwt/JwtFilter.java
+++ b/src/main/java/umc/kkijuk/server/auth/jwt/JwtFilter.java
@@ -49,16 +49,16 @@ protected void doFilterInternal(
 
       if (authorizationHeader != null && authorizationHeader.startsWith("Bearer ")) {
         jwt = authorizationHeader.substring(7);
-        kakaoId = jwtUtil.extractKakaoId(jwt);
+        kakaoId = jwtUtil.extractSocialId(jwt);
       }
 
       if (kakaoId != null && SecurityContextHolder.getContext().getAuthentication() == null) {
-        Member member = memberRepository.findByKakaoId(kakaoId).orElse(null);
+        Member member = memberRepository.findBySocialId(kakaoId).orElse(null);
 
-        if (member != null && jwtUtil.validateToken(jwt, String.valueOf(member.getKakaoId()))) {
+        if (member != null && jwtUtil.validateToken(jwt, String.valueOf(member.getSocialId()))) {
           UserDetails userDetails =
                   new org.springframework.security.core.userdetails.User(
-                          String.valueOf(member.getKakaoId()),
+                          String.valueOf(member.getSocialId()),
                           "",
                           Collections.singletonList(new SimpleGrantedAuthority(member.getRole().name())));
 
diff --git a/src/main/java/umc/kkijuk/server/auth/jwt/JwtUtil.java b/src/main/java/umc/kkijuk/server/auth/jwt/JwtUtil.java
index d3c0103..c5bed84 100644
--- a/src/main/java/umc/kkijuk/server/auth/jwt/JwtUtil.java
+++ b/src/main/java/umc/kkijuk/server/auth/jwt/JwtUtil.java
@@ -72,7 +72,7 @@ public boolean validateToken(String token, String socialId) {
     }
   }
 
-  public Long extractKakaoId(String token) {
+  public Long extractSocialId(String token) {
     return Long.valueOf(
             Jwts.parserBuilder()
                     .setSigningKey(getSigningKey())
diff --git a/src/main/java/umc/kkijuk/server/auth/service/KakaoAuthService.java b/src/main/java/umc/kkijuk/server/auth/service/KakaoAuthService.java
index 28962fb..e951b0a 100644
--- a/src/main/java/umc/kkijuk/server/auth/service/KakaoAuthService.java
+++ b/src/main/java/umc/kkijuk/server/auth/service/KakaoAuthService.java
@@ -99,7 +99,7 @@ public Member processKakaoUser(String accessToken) {
 
         log.info("카카오 사용자 정보 추출 - 이메일: {}, 이름: {}, 카카오 ID: {}, 전화번호: {}, 생년월일: {}", email, name, kakaoId, phoneNumber, birthDate);
 
-        return memberRepository.findByKakaoId(kakaoId)
+        return memberRepository.findBySocialId(kakaoId)
                 .orElseGet(() -> {
                     log.info("신규 사용자 생성 - 카카오 ID: {}", kakaoId);
                     return memberService.createUserWithKakaoId(kakaoId, kakaoUserInfo);
@@ -107,7 +107,7 @@ public Member processKakaoUser(String accessToken) {
     }
 
     public Map<String, String> generateTokens(Member member) {
-        String kakaoId = String.valueOf(member.getKakaoId());
+        String kakaoId = String.valueOf(member.getSocialId());
 
         String accessToken = jwtUtil.createAccessToken(kakaoId);
         String refreshToken = jwtUtil.createRefreshToken(kakaoId);
diff --git a/src/main/java/umc/kkijuk/server/common/LoginUser.java b/src/main/java/umc/kkijuk/server/common/LoginUser.java
index 142851b..4cf7476 100644
--- a/src/main/java/umc/kkijuk/server/common/LoginUser.java
+++ b/src/main/java/umc/kkijuk/server/common/LoginUser.java
@@ -1,20 +1,46 @@
 package umc.kkijuk.server.common;
 
 import lombok.Getter;
+import umc.kkijuk.server.auth.jwt.JwtUtil;
+import umc.kkijuk.server.member.domain.Member;
+import umc.kkijuk.server.member.service.MemberService;
 
 @Getter
 public class LoginUser {
 
+    private final JwtUtil jwtUtil;
+    private final MemberService memberService;
     private Long id;
-    private static final LoginUser LOGIN_USER = new LoginUser(1L);
 
-    public LoginUser(Long id) {
+    public LoginUser(JwtUtil jwtUtil, MemberService memberService, Long id) {
+        this.jwtUtil = jwtUtil;
+        this.memberService = memberService;
         this.id = id;
     }
 
+    private static final LoginUser LOGIN_USER = new LoginUser( null, null,1L);
+
+
     public static LoginUser get() {
         return LOGIN_USER;
     }
 
+    public Long extractMemberId(String bearerToken) {
+        if (bearerToken == null || !bearerToken.startsWith("Bearer ")) {
+            throw new IllegalArgumentException("Authorization 헤더에 올바른 토큰이 없습니다.");
+        }
+
+        String token = bearerToken.substring(7);
+        Long socialId = jwtUtil.extractSocialId(token);
+
+        if (socialId == null) {
+            throw new IllegalArgumentException("유효하지 않은 토큰입니다.");
+        }
+
+        Member member = memberService.findBySocialId(socialId);
+        return member.getId();
+    }
+
+
 
 }
diff --git a/src/main/java/umc/kkijuk/server/member/controller/MemberController.java b/src/main/java/umc/kkijuk/server/member/controller/MemberController.java
index 5da4e7c..4e37bf3 100644
--- a/src/main/java/umc/kkijuk/server/member/controller/MemberController.java
+++ b/src/main/java/umc/kkijuk/server/member/controller/MemberController.java
@@ -2,8 +2,6 @@
 
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpServletResponse;
 import jakarta.validation.Valid;
 import lombok.Builder;
 import lombok.extern.slf4j.Slf4j;
@@ -15,13 +13,11 @@
 import umc.kkijuk.server.auth.jwt.JwtUtil;
 import umc.kkijuk.server.common.LoginUser;
 import umc.kkijuk.server.member.controller.response.*;
-import umc.kkijuk.server.member.domain.Member;
 import umc.kkijuk.server.member.dto.*;
 import umc.kkijuk.server.member.emailauth.MailServiceImpl;
 import umc.kkijuk.server.member.service.MemberService;
 import lombok.RequiredArgsConstructor;
 
-import java.util.Collections;
 import java.util.List;
 
 
@@ -141,7 +137,7 @@ public ResponseEntity<MemberEmailResponse> getEmail() {
     public ResponseEntity<AuthResponse> refreshToken(@RequestBody RefreshTokenRequest request) {
 
         String refreshToken = request.getRefreshToken();
-        Long kakaoId = jwtUtil.extractKakaoId(refreshToken);
+        Long kakaoId = jwtUtil.extractSocialId(refreshToken);
 
         AuthResponse response = memberService.refreshAuthToken(refreshToken, kakaoId);
 
@@ -159,8 +155,8 @@ public ResponseEntity<AuthResponse> refreshToken(@RequestBody RefreshTokenReques
             summary = "내 정보 조회",
             description = "마이페이지에서 내 정보들을 가져옵니다.")
     @GetMapping("/myPage/info")
-    public ResponseEntity<MemberInfoResponse> getInfo() {
-        Long loginUser = LoginUser.get().getId();
+    public ResponseEntity<MemberInfoResponse> getInfo(@RequestHeader("Authorization") String bearerToken) {
+        Long loginUser = LoginUser.get().extractMemberId(bearerToken);
         MemberInfoResponse memberInfoResponse = memberService.getMemberInfo(loginUser);
         return ResponseEntity
                 .status(HttpStatus.OK)
@@ -200,7 +196,7 @@ public ResponseEntity<Boolean> postField(@RequestBody MemberFieldDto memberField
     @Operation(summary = "로그아웃", description = "사용자 로그아웃")
     @PostMapping("/logout")
     public ResponseEntity<String> logout(@RequestHeader("Authorization") String token) {
-        Long kakaoId = jwtUtil.extractKakaoId(token.substring(7));
+        Long kakaoId = jwtUtil.extractSocialId(token.substring(7));
         memberService.invalidateRefreshToken(kakaoId);
         return ResponseEntity.ok("로그아웃 완료");
     }
diff --git a/src/main/java/umc/kkijuk/server/member/domain/Member.java b/src/main/java/umc/kkijuk/server/member/domain/Member.java
index e68bf26..0a0d3b7 100644
--- a/src/main/java/umc/kkijuk/server/member/domain/Member.java
+++ b/src/main/java/umc/kkijuk/server/member/domain/Member.java
@@ -22,7 +22,7 @@ public class Member extends BaseEntity {
     @Column(name = "member_id")
     private Long id;
 
-    private Long kakaoId;
+    private Long socialId;
 
     @NotNull
     private String email;
@@ -98,8 +98,8 @@ public void deleteRecruitTag(String tag) {
         this.recruitTags.remove(tag);
     }
 
-    public void setKakaoId(Long kakaoId) {
-        this.kakaoId = kakaoId;
+    public void setSocialId(Long kakaoId) {
+        this.socialId = kakaoId;
     }
 
     public void setEmail(String email) {this.email = email;}
diff --git a/src/main/java/umc/kkijuk/server/member/repository/MemberJpaRepository.java b/src/main/java/umc/kkijuk/server/member/repository/MemberJpaRepository.java
index d0624f7..c8b2e90 100644
--- a/src/main/java/umc/kkijuk/server/member/repository/MemberJpaRepository.java
+++ b/src/main/java/umc/kkijuk/server/member/repository/MemberJpaRepository.java
@@ -9,5 +9,5 @@ public interface MemberJpaRepository extends JpaRepository<Member, Long>{
     Optional<Member> findById(Long id);
     Optional<Member> findByEmail(String email);
     Optional<Member> findByPhoneNumber(String phoneNumber);
-    Optional<Member> findByKakaoId(Long kakaoId);
+    Optional<Member> findBySocialId(Long socialId);
 }
diff --git a/src/main/java/umc/kkijuk/server/member/repository/MemberRepository.java b/src/main/java/umc/kkijuk/server/member/repository/MemberRepository.java
index f101c21..358aaa9 100644
--- a/src/main/java/umc/kkijuk/server/member/repository/MemberRepository.java
+++ b/src/main/java/umc/kkijuk/server/member/repository/MemberRepository.java
@@ -9,6 +9,6 @@ public interface MemberRepository {
     Optional<Member> findByEmail(String email);
     Member save(Member member);
     Optional<Member> findByPhoneNumber(String phoneNumber);
-    Optional<Member> findByKakaoId(Long kakaoId);
+    Optional<Member> findBySocialId(Long socialId);
     void deleteById(Long id);
 }
\ No newline at end of file
diff --git a/src/main/java/umc/kkijuk/server/member/repository/MemberRepositoryImpl.java b/src/main/java/umc/kkijuk/server/member/repository/MemberRepositoryImpl.java
index 3e8fc27..3944a8b 100644
--- a/src/main/java/umc/kkijuk/server/member/repository/MemberRepositoryImpl.java
+++ b/src/main/java/umc/kkijuk/server/member/repository/MemberRepositoryImpl.java
@@ -29,8 +29,8 @@ public Optional<Member> findByPhoneNumber(String phoneNumber) {
         return memberJpaRepository.findByPhoneNumber(phoneNumber);
     }
     @Override
-    public Optional<Member> findByKakaoId(Long kakaoId) {
-        return memberJpaRepository.findByKakaoId(kakaoId);
+    public Optional<Member> findBySocialId(Long socialId) {
+        return memberJpaRepository.findBySocialId(socialId);
     }
 
     @Override
diff --git a/src/main/java/umc/kkijuk/server/member/service/MemberService.java b/src/main/java/umc/kkijuk/server/member/service/MemberService.java
index caeb231..8ba18fd 100644
--- a/src/main/java/umc/kkijuk/server/member/service/MemberService.java
+++ b/src/main/java/umc/kkijuk/server/member/service/MemberService.java
@@ -1,18 +1,14 @@
 package umc.kkijuk.server.member.service;
 
 import umc.kkijuk.server.auth.dto.AuthResponse;
-import umc.kkijuk.server.auth.dto.RefreshTokenRequest;
-import umc.kkijuk.server.member.controller.response.EmailAuthResponse;
 import umc.kkijuk.server.member.controller.response.MemberEmailResponse;
 import umc.kkijuk.server.member.controller.response.MemberInfoResponse;
 import umc.kkijuk.server.member.controller.response.MemberStateResponse;
 import umc.kkijuk.server.member.domain.Member;
 import umc.kkijuk.server.member.dto.*;
 
-import java.time.LocalDate;
 import java.util.List;
 import java.util.Map;
-import java.util.Optional;
 
 public interface MemberService {
     Member getById(Long memberId);
@@ -37,8 +33,7 @@ public interface MemberService {
     void invalidateRefreshToken(Long kakaoId);
     void updateRefreshToken(Long kakaoId, String refreshToken);
     Long extractMemberId(String bearerToken);
-    Member findByKakaoId(Long kakaoId);
-    Member findMemberByKakaoId(Long kakaoId);
+    Member findBySocialId(Long socialId);
     AuthResponse refreshAuthToken(String refreshToken, Long kakaoId);
 
 }
diff --git a/src/main/java/umc/kkijuk/server/member/service/MemberServiceImpl.java b/src/main/java/umc/kkijuk/server/member/service/MemberServiceImpl.java
index 95004a8..99d1aff 100644
--- a/src/main/java/umc/kkijuk/server/member/service/MemberServiceImpl.java
+++ b/src/main/java/umc/kkijuk/server/member/service/MemberServiceImpl.java
@@ -7,10 +7,8 @@
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import umc.kkijuk.server.auth.dto.AuthResponse;
-import umc.kkijuk.server.auth.dto.RefreshTokenRequest;
 import umc.kkijuk.server.auth.jwt.JwtUtil;
 import umc.kkijuk.server.common.domian.exception.*;
-import umc.kkijuk.server.member.controller.response.EmailAuthResponse;
 import umc.kkijuk.server.member.controller.response.MemberEmailResponse;
 import umc.kkijuk.server.member.controller.response.MemberInfoResponse;
 import umc.kkijuk.server.member.controller.response.MemberStateResponse;
@@ -229,7 +227,7 @@ public Member createUserWithKakaoId(Long kakaoId, Map<String, Object> kakaoUserI
         }
 
         Member newMember = new Member();
-        newMember.setKakaoId(kakaoId);
+        newMember.setSocialId(kakaoId);
         newMember.setEmail(email);
         newMember.setName(name);
         newMember.setPhoneNumber(phoneNumber);
@@ -243,9 +241,9 @@ public Member createUserWithKakaoId(Long kakaoId, Map<String, Object> kakaoUserI
     @Override
     @Transactional
     public MemberInfoResponse getMemberInfo(Long kakaoId) {
-        Member member = findMemberByKakaoId(kakaoId);
+        Member member = this.findBySocialId(kakaoId);
         return MemberInfoResponse.builder()
-                .kakaoId(member.getKakaoId())
+                .kakaoId(member.getSocialId())
                 .email(member.getEmail())
                 .name(member.getName())
                 .phoneNumber(member.getPhoneNumber())
@@ -258,7 +256,7 @@ public MemberInfoResponse getMemberInfo(Long kakaoId) {
     @Override
     @Transactional
     public void invalidateRefreshToken(Long kakaoId) {
-        Member member = findMemberByKakaoId(kakaoId);
+        Member member = this.findBySocialId(kakaoId);
         member.setRefreshToken(null);
         log.info("Refresh Token 삭제 완료 - Kakao ID: {}", kakaoId);
     }
@@ -266,7 +264,7 @@ public void invalidateRefreshToken(Long kakaoId) {
     @Override
     @Transactional
     public void updateRefreshToken(Long kakaoId, String refreshToken) {
-        Member member = findMemberByKakaoId(kakaoId);
+        Member member = this.findBySocialId(kakaoId);
         member.setRefreshToken(refreshToken);
         log.info("Refresh Token 업데이트 완료 - Kakao ID: {}, Refresh Token: {}", kakaoId, refreshToken);
     }
@@ -285,21 +283,15 @@ public Long extractMemberId(String bearerToken) {
             throw new IllegalArgumentException("Authorization 헤더에 올바른 토큰이 없습니다.");
         }
 
-        Long kakaoId = jwtUtil.extractKakaoId(bearerToken.substring(7));
-        return findMemberByKakaoId(kakaoId).getId();
+        Long kakaoId = jwtUtil.extractSocialId(bearerToken.substring(7));
+        return this.findBySocialId(kakaoId).getId();
     }
 
     @Override
     @Transactional
-    public Member findByKakaoId(Long kakaoId) {
-        return findMemberByKakaoId(kakaoId);
-    }
-
-    @Override
-    @Transactional
-    public Member findMemberByKakaoId(Long kakaoId) {
-        return memberRepository.findByKakaoId(kakaoId)
-                .orElseThrow(() -> new RuntimeException("Member not found with Kakao ID: " + kakaoId));
+    public Member findBySocialId(Long SocialId) {
+        return memberRepository.findBySocialId(SocialId)
+                .orElseThrow(() -> new RuntimeException("Member not found with Social ID: " + SocialId));
     }
 
     @Override
@@ -307,13 +299,13 @@ public Member findMemberByKakaoId(Long kakaoId) {
     public AuthResponse refreshAuthToken(String refreshToken, Long kakaoId) {
         // Refresh Token 검증
         if (!jwtUtil.validateToken(refreshToken, String.valueOf(kakaoId))) {
-            log.warn("유효하지 않은 Refresh Token - Kakao ID: {}", kakaoId);
+            log.warn("유효하지 않은 Refresh Token - Social ID: {}", kakaoId);
             throw new IllegalArgumentException("유효하지 않은 Refresh Token입니다.");
         }
 
         // Member 조회
-        Member member = memberRepository.findByKakaoId(kakaoId)
-                .orElseThrow(() -> new RuntimeException("Member not found with Kakao ID: " + kakaoId));
+        Member member = memberRepository.findBySocialId(kakaoId)
+                .orElseThrow(() -> new RuntimeException("Member not found with Social ID: " + kakaoId));
 
         // 새로운 Access Token과 Refresh Token 발급 (Refresh Token Rotation)
         String newAccessToken = jwtUtil.createAccessToken(String.valueOf(kakaoId));