diff --git a/src/main/java/com/meetkey/server/domain/auth/exception/AuthErrorStatus.java b/src/main/java/com/meetkey/server/domain/auth/exception/AuthErrorStatus.java
index c4fca3e..e869d02 100644
--- a/src/main/java/com/meetkey/server/domain/auth/exception/AuthErrorStatus.java
+++ b/src/main/java/com/meetkey/server/domain/auth/exception/AuthErrorStatus.java
@@ -15,6 +15,7 @@ public enum AuthErrorStatus implements BaseCode {
     SEND_FAILED(HttpStatus.INTERNAL_SERVER_ERROR, "AUTH5001", "인증번호 발송에 실패했습니다."),
 
     INVALID_SOCIAL(HttpStatus.BAD_REQUEST, "AUTH4003", "잘못된 소셜 로그인 형식입니다."),
+    DUPLICATE_PHONE_NUMBER(HttpStatus.BAD_REQUEST, "AUTH4004", "중복된 전화번호입니다.")
     ;
     private final HttpStatus status;
     private final String code;
diff --git a/src/main/java/com/meetkey/server/domain/match/service/MatchServiceImpl.java b/src/main/java/com/meetkey/server/domain/match/service/MatchServiceImpl.java
index 2dc734c..c8e6ea5 100644
--- a/src/main/java/com/meetkey/server/domain/match/service/MatchServiceImpl.java
+++ b/src/main/java/com/meetkey/server/domain/match/service/MatchServiceImpl.java
@@ -19,6 +19,7 @@
 import com.meetkey.server.domain.member.repository.MemberLocationRepository;
 import com.meetkey.server.domain.member.repository.MemberRepository;
 import com.meetkey.server.domain.member.repository.PreferenceRepository;
+import com.meetkey.server.global.s3.S3Service;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -26,10 +27,7 @@
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.stream.Collectors;
 
 @Service
@@ -45,6 +43,7 @@ public class MatchServiceImpl implements MatchService {
     private final RecommendationQueueRepository recommendationQueueRepository;
     private final ChatRoomMemberRepository chatRoomMemberRepository;
     private final com.meetkey.server.domain.badge.respository.PointHistoryRepository pointHistoryRepository;
+    private final S3Service s3Service;
 
     @Transactional
     @Override
@@ -342,6 +341,11 @@ private RecommendationResDTO convertToDTO(Member member, Preference pref, double
                 .build();
         }
 
+        List<String> photoUrls = Optional.ofNullable(member.getProfileImageUrl())
+                .map(s3Service::generateGetPresignedUrl)
+                .map(Collections::singletonList)
+                .orElseGet(Collections::emptyList);
+
         // 관심사 목록 조회
         List<String> interests = member.getInterestMembers().stream()
             .map(im -> im.getInterest().getType().name())
@@ -364,7 +368,7 @@ private RecommendationResDTO convertToDTO(Member member, Preference pref, double
                 .build())
             .interests(interests)
             .personality(personalityDTO)
-            .photoUrls(Collections.emptyList()) // 플레이스홀더
+            .photoUrls(photoUrls)// 플레이스홀더
             .introduction(member.getBio())
             .badge(RecommendationResDTO.BadgeInfoDTO.builder()
                 .level(badgeLevel)
diff --git a/src/main/java/com/meetkey/server/domain/member/repository/MemberRepository.java b/src/main/java/com/meetkey/server/domain/member/repository/MemberRepository.java
index c5e51d0..11ee227 100644
--- a/src/main/java/com/meetkey/server/domain/member/repository/MemberRepository.java
+++ b/src/main/java/com/meetkey/server/domain/member/repository/MemberRepository.java
@@ -6,4 +6,5 @@
 import java.util.Optional;
 
 public interface MemberRepository extends JpaRepository<Member,Long> {
+    Boolean existsByPhoneNumber(String phoneNumber);
 }
diff --git a/src/main/java/com/meetkey/server/domain/member/service/MemberService.java b/src/main/java/com/meetkey/server/domain/member/service/MemberService.java
index 84d5165..a64aef3 100644
--- a/src/main/java/com/meetkey/server/domain/member/service/MemberService.java
+++ b/src/main/java/com/meetkey/server/domain/member/service/MemberService.java
@@ -1,6 +1,8 @@
 package com.meetkey.server.domain.member.service;
 
 
+import com.meetkey.server.domain.auth.exception.AuthErrorStatus;
+import com.meetkey.server.domain.auth.exception.AuthException;
 import com.meetkey.server.domain.member.dto.MemberReqDTO;
 import com.meetkey.server.domain.member.dto.MemberResDTO;
 import com.meetkey.server.domain.member.entity.Member;
@@ -31,6 +33,9 @@ public class MemberService {
 
     @Transactional
     public Member signup(Provider provider, String providerId, MemberReqDTO.Signup req) {
+        if (memberRepository.existsByPhoneNumber(req.phoneNumber())){
+            throw new AuthException(AuthErrorStatus.DUPLICATE_PHONE_NUMBER);
+        }
         Member member = Member.builder()
                 .name(req.name())
                 .targetLanguage(req.targetLanguage())
@@ -56,6 +61,10 @@ public Member signup(Provider provider, String providerId, MemberReqDTO.Signup r
 
     @Transactional
     public Member devSignup(Provider provider, String providerId, MemberReqDTO.Signup req, String name) {
+        if (memberRepository.existsByPhoneNumber(req.phoneNumber())){
+            throw new AuthException(AuthErrorStatus.DUPLICATE_PHONE_NUMBER);
+        }
+
         Member member = Member.builder()
                 .gender(req.gender())
                 .name(name)