diff --git a/aics-admin/src/main/java/kgu/developers/admin/graduationUser/application/GraduationUserAdminFacade.java b/aics-admin/src/main/java/kgu/developers/admin/graduationUser/application/GraduationUserAdminFacade.java
index 33e0d978..756263c7 100644
--- a/aics-admin/src/main/java/kgu/developers/admin/graduationUser/application/GraduationUserAdminFacade.java
+++ b/aics-admin/src/main/java/kgu/developers/admin/graduationUser/application/GraduationUserAdminFacade.java
@@ -28,6 +28,9 @@
 import kgu.developers.domain.thesis.application.command.ThesisCommandService;
 import kgu.developers.domain.thesis.application.query.ThesisQueryService;
 import kgu.developers.domain.thesis.domain.Thesis;
+import kgu.developers.domain.user.application.query.UserQueryService;
+import kgu.developers.domain.user.domain.User;
+import kgu.developers.domain.user.exception.UserNotFoundException;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Component;
@@ -47,6 +50,7 @@ public class GraduationUserAdminFacade {
     private final ThesisQueryService thesisQueryService;
     private final CertificateCommandService certificateCommandService;
     private final CertificateQueryService certificateQueryService;
+    private final UserQueryService userQueryService;
 
     public GraduationUserPersistResponse createGraduationUser(GraduationUserCreateRequest request) {
         Long id = graduationUserCommandService.createGraduationUser(request.studentId(), request.name(), request.advisorProfessor(), request.capstoneCompletion(), request.department(), request.graduationDate());
@@ -136,8 +140,12 @@ public void deleteGraduationUser(Long id) {
 
     public GraduationUserDetailResponse getGraduationUserById(Long graduationUserId) {
         GraduationUser graduationUser = graduationUserQueryService.getById(graduationUserId);
+        String phone = userQueryService.findById(graduationUser.getUserId())
+                .map(User::getPhone)
+                .orElse("");
+
         GraduationUserStatusResponse status = buildSubmissionStatus(graduationUser);
-        return GraduationUserDetailResponse.from(graduationUser, status);
+        return GraduationUserDetailResponse.from(graduationUser,phone ,status);
     }
 
     public GraduationUserBatchDeleteResponse deleteGraduationUsers(GraduationUserBatchDeleteRequest request) {
diff --git a/aics-admin/src/main/java/kgu/developers/admin/graduationUser/presentation/response/GraduationUserDetailResponse.java b/aics-admin/src/main/java/kgu/developers/admin/graduationUser/presentation/response/GraduationUserDetailResponse.java
index f9bb85a9..1fc04cd3 100644
--- a/aics-admin/src/main/java/kgu/developers/admin/graduationUser/presentation/response/GraduationUserDetailResponse.java
+++ b/aics-admin/src/main/java/kgu/developers/admin/graduationUser/presentation/response/GraduationUserDetailResponse.java
@@ -20,6 +20,9 @@ public record GraduationUserDetailResponse(
     @Schema(description = "학번(교번)", example = "202412345", requiredMode = REQUIRED)
     String studentId,
 
+    @Schema(description = "전화번호", example = "010-1234-5678", requiredMode = REQUIRED)
+    String phone,
+
     @Schema(description = "졸업 날짜", example = "2028-08", requiredMode = REQUIRED)
     @DateTimeFormat(pattern = "yyyy-MM")
     String graduationDate,
@@ -54,6 +57,7 @@ public record GraduationUserDetailResponse(
 ) {
     public static GraduationUserDetailResponse from(
         GraduationUser graduationUser,
+        String phone,
         GraduationUserStatusResponse status
     ) {
         DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM");
@@ -61,6 +65,7 @@ public static GraduationUserDetailResponse from(
             .graduationUserId(graduationUser.getId())
             .name(graduationUser.getName())
             .studentId(graduationUser.getUserId())
+            .phone(phone)
             .graduationDate(graduationUser.getGraduationDate().format(formatter))
             .advisor(graduationUser.getAdvisorProfessor())
             .major(graduationUser.getDepartment())
diff --git a/aics-admin/src/testFixtures/java/graduationUser/application/GraduationUserAdminFacadeTest.java b/aics-admin/src/testFixtures/java/graduationUser/application/GraduationUserAdminFacadeTest.java
index 9899151a..49a06639 100644
--- a/aics-admin/src/testFixtures/java/graduationUser/application/GraduationUserAdminFacadeTest.java
+++ b/aics-admin/src/testFixtures/java/graduationUser/application/GraduationUserAdminFacadeTest.java
@@ -51,6 +51,7 @@
 import java.util.HashSet;
 import java.util.List;
 
+import static kgu.developers.domain.user.domain.Major.CSE;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 
@@ -133,7 +134,13 @@ public void init() {
                 .approval(false)
                 .build()
         );
-
+        fakeUserRepository.save(User.builder()
+                .id("202411001")
+                .name("홍길동")
+                .phone("010-1111-2222")
+                .email("hong1@kyonggi.ac.kr")
+                .major(CSE)
+                .build());
 
 
         graduationUserAdminFacade = new GraduationUserAdminFacade(
@@ -142,7 +149,8 @@ public void init() {
             thesisCommandService,
             new ThesisQueryService(fakeThesisRepository),
             certificateCommandService,
-            new CertificateQueryService(fakeCertificateRepository)
+            new CertificateQueryService(fakeCertificateRepository),
+            userQueryService
         );
 
         graduationUser1 = fakeGraduationUserRepository.save(GraduationUser.builder()
@@ -275,6 +283,21 @@ public void getGrduationUserById_Success() {
 
         //then
         assertEquals(result.studentId(),graduationUser1.getUserId());
+        assertEquals("010-1111-2222", result.phone());
+    }
+
+    @Test
+    @DisplayName("getGrduationUserById는 가입하지 않은 사용자의 전화번호를 빈 값으로 반환한다.")
+    public void getGrduationUserById_ReturnsEmptyPhoneWhenUserDoesNotExist() {
+        //given
+        Long graduationUserId = 2L;
+
+        //when
+        GraduationUserDetailResponse result = graduationUserAdminFacade.getGraduationUserById(graduationUserId);
+
+        //then
+        assertEquals(graduationUser2.getUserId(), result.studentId());
+        assertEquals("", result.phone());
     }
 
     @Test
diff --git a/aics-domain/src/main/java/kgu/developers/domain/user/application/query/UserQueryService.java b/aics-domain/src/main/java/kgu/developers/domain/user/application/query/UserQueryService.java
index 5006a538..8d5bf833 100644
--- a/aics-domain/src/main/java/kgu/developers/domain/user/application/query/UserQueryService.java
+++ b/aics-domain/src/main/java/kgu/developers/domain/user/application/query/UserQueryService.java
@@ -16,6 +16,7 @@
 
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 @Service
@@ -59,4 +60,7 @@ public List<User> getAllUsersByIds(List<String> ids) {
 	public Map<String, String> getUserNameMapByIds(List<String> authorIds) {
 		return getAllUsersByIds(authorIds).stream().collect(Collectors.toMap(User::getId, User::getName));
 	}
+	public Optional<User> findById(String userId) {
+		return userRepository.findById(userId);
+	}
 }