diff --git a/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCase.java b/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCase.java
index adfa9935..bff50863 100644
--- a/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCase.java
+++ b/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCase.java
@@ -20,6 +20,7 @@
 
 import static com.postgraduate.domain.senior.application.mapper.SeniorMapper.mapToSeniorDetail;
 import static com.postgraduate.domain.senior.application.mapper.SeniorMapper.mapToSeniorProfile;
+import static com.postgraduate.domain.user.domain.entity.constant.Role.SENIOR;
 
 @Service
 @Transactional
@@ -30,7 +31,7 @@ public class SeniorInfoUseCase {
     private final AvailableGetService availableGetService;
 
     public SeniorDetailResponse getSeniorDetail(User user, Long seniorId) {
-        if (user != null)
+        if (user != null && user.getRole() == SENIOR)
             return checkIsMine(user, seniorId);
         return getResponse(seniorId, false);
     }
@@ -99,9 +100,4 @@ public AllSeniorIdResponse getAllSeniorId() {
                 .toList();
         return new AllSeniorIdResponse(seniorIds);
     }
-
-    public Long getSeniorId(String nickName) {
-        Senior senior = seniorGetService.bySeniorNickName(nickName);
-        return senior.getSeniorId();
-    }
 }
diff --git a/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCaseTest.java b/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCaseTest.java
index 51d96210..0df79663 100644
--- a/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCaseTest.java
+++ b/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorInfoUseCaseTest.java
@@ -30,6 +30,7 @@
 import static java.lang.Boolean.TRUE;
 import static java.time.LocalDate.now;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.BDDMockito.given;
 
 @ExtendWith(MockitoExtension.class)
@@ -64,14 +65,14 @@ void setting() {
                 LocalDateTime.now(), LocalDateTime.now());
     }
     @Test
-    @DisplayName("선배 상세보기 테스트")
+    @DisplayName("선배 상세보기 테스트 USER")
     void getSeniorDetail() {
         Available available1 = new Available(1L, "월", "12:00", "18:00", senior);
         Available available2 = new Available(2L, "화", "12:00", "18:00", senior);
         Available available3 = new Available(3L, "수", "12:00", "18:00", senior);
         List<Available> availables = List.of(available1, available2, available3);
 
-        given(seniorGetService.byUser(user))
+        given(seniorGetService.bySeniorIdWithCertification(any()))
                 .willReturn(senior);
         given(availableGetService.bySenior(senior))
                 .willReturn(availables);