diff --git a/src/main/java/dmu/dasom/api/domain/common/exception/ErrorCode.java b/src/main/java/dmu/dasom/api/domain/common/exception/ErrorCode.java
index 2d1cef6..c812cb2 100644
--- a/src/main/java/dmu/dasom/api/domain/common/exception/ErrorCode.java
+++ b/src/main/java/dmu/dasom/api/domain/common/exception/ErrorCode.java
@@ -38,7 +38,8 @@ public enum ErrorCode {
     RECRUITMENT_NOT_ACTIVE(400, "C029", "모집 기간이 아닙니다."),
     NOT_FOUND_PARTICIPANT(400, "C030", "참가자를 찾을 수 없습니다."),
     EXECUTIVE_NOT_FOUND(400, "C031", "임원진을 찾을 수 없습니다."),
-    ;
+    GENERATION_NOT_FOUND(400, "C032", "저장된 기수를 찾을 수 없습니다."),
+    INVALID_GENERATION_FORMAT(400, "C033", "유효하지 않은 기수 형식입니다. (예: '1기')");
 
     private final int status;
     private final String code;
diff --git a/src/main/java/dmu/dasom/api/domain/member/dto/SignupRequestDto.java b/src/main/java/dmu/dasom/api/domain/member/dto/SignupRequestDto.java
index 62b395e..94c1994 100644
--- a/src/main/java/dmu/dasom/api/domain/member/dto/SignupRequestDto.java
+++ b/src/main/java/dmu/dasom/api/domain/member/dto/SignupRequestDto.java
@@ -22,10 +22,15 @@ public class SignupRequestDto {
     @Schema(description = "비밀번호", example = "password", minLength = 8, maxLength = 128)
     private String password;
 
-    public Member toEntity(final String password) {
+    @Length(max = 4)
+    @Schema(description = "기수 (선택)", example = "34기", nullable = true)
+    private String generation;
+
+    public Member toEntity(final String password, final String generation) {
         return Member.builder()
                 .email(this.email)
                 .password(password)
+                .generation(generation)
                 .build();
     }
 }
diff --git a/src/main/java/dmu/dasom/api/domain/member/entity/Member.java b/src/main/java/dmu/dasom/api/domain/member/entity/Member.java
index b2c6c9a..aacaa48 100644
--- a/src/main/java/dmu/dasom/api/domain/member/entity/Member.java
+++ b/src/main/java/dmu/dasom/api/domain/member/entity/Member.java
@@ -33,4 +33,7 @@ public class Member extends BaseEntity {
     @Enumerated(EnumType.STRING)
     private Role role = Role.ROLE_MEMBER;
 
-}
+    // 기수 정보를 저장할 필드 추가
+    @Column(name = "generation", length = 4, nullable = false)
+    private String generation;
+}
\ No newline at end of file
diff --git a/src/main/java/dmu/dasom/api/domain/member/service/MemberServiceImpl.java b/src/main/java/dmu/dasom/api/domain/member/service/MemberServiceImpl.java
index eef3d68..2094c5a 100644
--- a/src/main/java/dmu/dasom/api/domain/member/service/MemberServiceImpl.java
+++ b/src/main/java/dmu/dasom/api/domain/member/service/MemberServiceImpl.java
@@ -2,6 +2,7 @@
 
 import dmu.dasom.api.domain.common.exception.CustomException;
 import dmu.dasom.api.domain.common.exception.ErrorCode;
+import dmu.dasom.api.domain.recruit.service.RecruitService;
 import dmu.dasom.api.domain.member.dto.SignupRequestDto;
 import dmu.dasom.api.domain.member.entity.Member;
 import dmu.dasom.api.domain.member.repository.MemberRepository;
@@ -24,6 +25,7 @@ public class MemberServiceImpl implements MemberService {
 
     private final BCryptPasswordEncoder encoder;
     private final MemberRepository memberRepository;
+    private final RecruitService recruitService;
     private final JwtUtil jwtUtil;
 
     // 이메일로 사용자 조회
@@ -45,9 +47,13 @@ public void signUp(final SignupRequestDto request) {
         // 이미 가입된 이메일인지 확인
         if (checkByEmail(request.getEmail()))
             throw new CustomException(ErrorCode.SIGNUP_FAILED);
+        //기수는 선택적으로 가져오며, 없을 경우 신입 부붠 처리하여, 모집일정의 기수 사용
+        String generation = (request.getGeneration() != null && !request.getGeneration().isEmpty())
+                ? request.getGeneration()
+                : recruitService.getCurrentGeneration();
 
-        // 비밀번호 암호화 후 저장
-        memberRepository.save(request.toEntity(encoder.encode(request.getPassword())));
+        // 비밀번호 암호화 후 저장, 기수도 같이 기입
+        memberRepository.save(request.toEntity(encoder.encode(request.getPassword()), generation));
     }
 
     // 토큰 갱신
diff --git a/src/main/java/dmu/dasom/api/domain/recruit/entity/Recruit.java b/src/main/java/dmu/dasom/api/domain/recruit/entity/Recruit.java
index 6d39414..29366ab 100644
--- a/src/main/java/dmu/dasom/api/domain/recruit/entity/Recruit.java
+++ b/src/main/java/dmu/dasom/api/domain/recruit/entity/Recruit.java
@@ -37,7 +37,19 @@ public void updateTime(final LocalTime time) {
         this.value = time.format(TIME_FORMATTER);
     }
 
+
+    // 기수 업데이트
+    public void updateGeneration(final String generation) {
+        this.value = generation; // ex. "34기"
+    }
+
     public RecruitConfigResponseDto toResponse() {
+        if(this.key == ConfigKey.GENERATION){
+            return RecruitConfigResponseDto.builder()
+                    .key(key)
+                    .value(value)
+                    .build();
+        }
         LocalDateTime dateTime = LocalDateTime.parse(this.value, DATE_TIME_FORMATTER);
         return RecruitConfigResponseDto.builder()
             .key(key)
diff --git a/src/main/java/dmu/dasom/api/domain/recruit/enums/ConfigKey.java b/src/main/java/dmu/dasom/api/domain/recruit/enums/ConfigKey.java
index 5bc3a4e..a224918 100644
--- a/src/main/java/dmu/dasom/api/domain/recruit/enums/ConfigKey.java
+++ b/src/main/java/dmu/dasom/api/domain/recruit/enums/ConfigKey.java
@@ -18,6 +18,7 @@ public enum ConfigKey {
     INTERVIEW_TIME_END,        // 면접 종료 시간
 
     // 2차 합격 발표일 (시간 포함)
-    INTERVIEW_PASS_ANNOUNCEMENT   // 2차 합격 발표일
+    INTERVIEW_PASS_ANNOUNCEMENT,   // 2차 합격 발표일
 
+    GENERATION     //현재 모집중인 기수 정보
 }
diff --git a/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitService.java b/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitService.java
index ac272dd..cb9a150 100644
--- a/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitService.java
+++ b/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitService.java
@@ -15,6 +15,10 @@ public interface RecruitService {
 
     void modifyRecruitSchedule(final RecruitScheduleModifyRequestDto requestDto);
 
+    void modifyGeneration(String newGeneration);
+
+    String getCurrentGeneration();
+
     String generateReservationCode(String studentNo, String contactLastDigits);
 
     LocalDateTime getResultAnnouncementSchedule(ResultCheckType type);
diff --git a/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitServiceImpl.java b/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitServiceImpl.java
index 7dbd6ce..cfe4241 100644
--- a/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitServiceImpl.java
+++ b/src/main/java/dmu/dasom/api/domain/recruit/service/RecruitServiceImpl.java
@@ -25,13 +25,13 @@ public class RecruitServiceImpl implements RecruitService {
 
     private final RecruitRepository recruitRepository;
 
-    // 모집 일정 설정 조회
+    // 모집 설정 조회
     @Override
     public List<RecruitConfigResponseDto> getRecruitSchedule() {
         return findAll().stream()
-            .map(config -> config.getKey() == ConfigKey.INTERVIEW_TIME_START || config.getKey() == ConfigKey.INTERVIEW_TIME_END
-                ? config.toTimeResponse() : config.toResponse())
-            .toList();
+                .map(config -> config.getKey() == ConfigKey.INTERVIEW_TIME_START || config.getKey() == ConfigKey.INTERVIEW_TIME_END
+                        ? config.toTimeResponse() : config.toResponse())
+                .toList();
     }
 
     // 모집 일정 설정 수정
@@ -50,6 +50,20 @@ public void modifyRecruitSchedule(final RecruitScheduleModifyRequestDto request)
         config.updateDateTime(dateTime);
     }
 
+
+    //기수 수정
+    @Override
+    @Transactional
+    public void modifyGeneration(String newGeneration) {
+        final Recruit config = findByKey(ConfigKey.GENERATION);
+        config.updateGeneration(newGeneration);
+    }
+    // 기수 조회
+    @Override
+    public String getCurrentGeneration() {
+        Recruit generationConfig = findByKey(ConfigKey.GENERATION);
+        return generationConfig.getValue();
+    }
     // 모집 기간 여부 확인
     @Override
     public boolean isRecruitmentActive() {
diff --git a/src/main/java/dmu/dasom/api/global/admin/controller/AdminRecruitController.java b/src/main/java/dmu/dasom/api/global/admin/controller/AdminRecruitController.java
index 86ac9a0..a2ceb7f 100644
--- a/src/main/java/dmu/dasom/api/global/admin/controller/AdminRecruitController.java
+++ b/src/main/java/dmu/dasom/api/global/admin/controller/AdminRecruitController.java
@@ -57,6 +57,19 @@ public ResponseEntity<Void> modifyRecruitSchedule(@Valid @RequestBody final Recr
             .build();
     }
 
+    @Operation(summary = "모집 기수 변경")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "모집 기수 수정 성공"),
+            @ApiResponse(responseCode = "400", description = "잘못된 요청")
+    })
+    @PatchMapping("/generation")
+    public ResponseEntity<Void> modifyGeneration(@Valid @RequestBody String request) {
+        recruitService.modifyGeneration(request);
+        return ResponseEntity.ok()
+                .build();
+    }
+
+
     @Operation(summary = "면접 일정 생성", description = "새로운 면접 일정을 생성합니다.")
     @ApiResponses(value = {
         @ApiResponse(responseCode = "200", description = "면접 일정 생성 성공"),
diff --git a/src/test/java/dmu/dasom/api/domain/member/MemberServiceTest.java b/src/test/java/dmu/dasom/api/domain/member/MemberServiceTest.java
index 9ba112c..89724b3 100644
--- a/src/test/java/dmu/dasom/api/domain/member/MemberServiceTest.java
+++ b/src/test/java/dmu/dasom/api/domain/member/MemberServiceTest.java
@@ -6,6 +6,7 @@
 import dmu.dasom.api.domain.member.entity.Member;
 import dmu.dasom.api.domain.member.repository.MemberRepository;
 import dmu.dasom.api.domain.member.service.MemberServiceImpl;
+import dmu.dasom.api.domain.recruit.service.RecruitService;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
@@ -13,6 +14,7 @@
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.test.util.ReflectionTestUtils;
 
 import java.util.Optional;
 
@@ -28,6 +30,9 @@ class MemberServiceTest {
     @Mock
     MemberRepository memberRepository;
 
+    @Mock
+    RecruitService recruitService; // RecruitService 주입
+
     @InjectMocks
     private MemberServiceImpl memberService;
 
@@ -92,23 +97,49 @@ void checkByEmail_false() {
         assertFalse(result);
     }
 
+
     @Test
-    @DisplayName("회원가입 - 성공")
-    void signUp_success() {
-        // given
-        SignupRequestDto request = mock(SignupRequestDto.class);
-        when(request.getEmail()).thenReturn("test@example.com");
-        when(request.getPassword()).thenReturn("password");
+    @DisplayName("회원가입 - 기수 선택값 전달 시 사용")
+    void signUp_withGenerationProvided() {
+        // 실제 DTO 객체 사용
+        SignupRequestDto request = new SignupRequestDto();
+        // Reflection 또는 생성자/Setter로 값 설정
+        ReflectionTestUtils.setField(request, "email", "test@example.com");
+        ReflectionTestUtils.setField(request, "password", "password");
+        ReflectionTestUtils.setField(request, "generation", "35기");
+
         when(encoder.encode("password")).thenReturn("encodedPassword");
         when(memberRepository.existsByEmail("test@example.com")).thenReturn(false);
 
-        // when
         memberService.signUp(request);
 
-        // then
-        verify(memberRepository, times(1)).save(any());
+        verify(memberRepository, times(1)).save(argThat(member ->
+                "35기".equals(member.getGeneration())
+        ));
+        verify(recruitService, never()).getCurrentGeneration();
     }
 
+    @Test
+    @DisplayName("회원가입 - 기수 선택값 없으면 기본값 사용")
+    void signUp_withGenerationDefault() {
+        SignupRequestDto request = new SignupRequestDto();
+        ReflectionTestUtils.setField(request, "email", "test@example.com");
+        ReflectionTestUtils.setField(request, "password", "password");
+        ReflectionTestUtils.setField(request, "generation", null);
+
+        when(encoder.encode("password")).thenReturn("encodedPassword");
+        when(memberRepository.existsByEmail("test@example.com")).thenReturn(false);
+        when(recruitService.getCurrentGeneration()).thenReturn("34기");
+
+        memberService.signUp(request);
+
+        verify(memberRepository, times(1)).save(argThat(member ->
+                "34기".equals(member.getGeneration())
+        ));
+        verify(recruitService, times(1)).getCurrentGeneration();
+    }
+
+
     @Test
     @DisplayName("회원가입 - 실패")
     void signUp_fail() {
diff --git a/src/test/java/dmu/dasom/api/domain/recruit/RecruitServiceTest.java b/src/test/java/dmu/dasom/api/domain/recruit/RecruitServiceTest.java
index 205f4a5..e91580a 100644
--- a/src/test/java/dmu/dasom/api/domain/recruit/RecruitServiceTest.java
+++ b/src/test/java/dmu/dasom/api/domain/recruit/RecruitServiceTest.java
@@ -33,7 +33,6 @@
 
 import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.Mockito.*;
-import static org.mockito.Mockito.mock;
 
 @ExtendWith(MockitoExtension.class)
 class RecruitServiceTest {
@@ -102,6 +101,36 @@ void modifyRecruitSchedule_fail() {
         assertEquals(ErrorCode.INVALID_TIME_FORMAT, exception.getErrorCode());
     }
 
+    @Test
+    @DisplayName("모집 기수 수정")
+    void modifyGeneration_success() {
+        // given
+        Recruit generationRecruit = mock(Recruit.class);
+        String newGeneration = "35기";
+        when(recruitRepository.findByKey(ConfigKey.GENERATION)).thenReturn(Optional.of(generationRecruit));
+
+        // when
+        recruitService.modifyGeneration(newGeneration);
+
+        // then
+        verify(generationRecruit, times(1)).updateGeneration(newGeneration);
+    }
+
+    @Test
+    @DisplayName("기수 조회")
+    void getCurrentGeneration_success() {
+        // given
+        Recruit generationRecruit = mock(Recruit.class);
+        when(recruitRepository.findByKey(ConfigKey.GENERATION)).thenReturn(Optional.of(generationRecruit));
+        when(generationRecruit.getValue()).thenReturn("34기");
+        // when
+        String currentGeneration = recruitService.getCurrentGeneration();
+        // then
+        assertEquals("34기", currentGeneration);
+        verify(recruitRepository, times(1)).findByKey(ConfigKey.GENERATION);
+        verify(generationRecruit, times(1)).getValue();
+    }
+
     @Test
     @DisplayName("면접 일정 생성 - 성공")
     void createInterviewSlots_success() {
@@ -196,4 +225,5 @@ void reserveInterviewSlot_fail_alreadyReserved() {
         assertEquals(ErrorCode.ALREADY_RESERVED, exception.getErrorCode());
     }
 
+
 }