diff --git a/back/src/main/java/com/back/domain/member/mentee/dto/MenteeDto.java b/back/src/main/java/com/back/domain/member/mentee/dto/MenteeDto.java
index a6f837bd..76988b20 100644
--- a/back/src/main/java/com/back/domain/member/mentee/dto/MenteeDto.java
+++ b/back/src/main/java/com/back/domain/member/mentee/dto/MenteeDto.java
@@ -6,12 +6,15 @@
 public record MenteeDto(
     @Schema(description = "멘티 ID")
     Long menteeId,
+    @Schema(description = "멘티 회원 ID")
+    Long menteeMemberId,
     @Schema(description = "멘티 닉네임")
     String nickname
 ) {
     public static MenteeDto from(Mentee mentee) {
         return new MenteeDto(
             mentee.getId(),
+            mentee.getMember().getId(),
             mentee.getMember().getNickname()
         );
     }
diff --git a/back/src/main/java/com/back/domain/member/mentor/dto/MentorDetailDto.java b/back/src/main/java/com/back/domain/member/mentor/dto/MentorDetailDto.java
index 4c4e27c0..e0639fae 100644
--- a/back/src/main/java/com/back/domain/member/mentor/dto/MentorDetailDto.java
+++ b/back/src/main/java/com/back/domain/member/mentor/dto/MentorDetailDto.java
@@ -6,6 +6,8 @@
 public record MentorDetailDto(
     @Schema(description = "멘토 ID")
     Long mentorId,
+    @Schema(description = "멘토 회원 ID")
+    Long mentorMemberId,
     @Schema(description = "멘토 닉네임")
     String nickname,
     @Schema(description = "평점")
@@ -17,6 +19,7 @@ public record MentorDetailDto(
     public static MentorDetailDto from(Mentor mentor) {
         return new MentorDetailDto(
             mentor.getId(),
+            mentor.getMember().getId(),
             mentor.getMember().getNickname(),
             mentor.getRate(),
             mentor.getCareerYears()
diff --git a/back/src/main/java/com/back/domain/member/mentor/dto/MentorDto.java b/back/src/main/java/com/back/domain/member/mentor/dto/MentorDto.java
index d25fb2ec..88a6063b 100644
--- a/back/src/main/java/com/back/domain/member/mentor/dto/MentorDto.java
+++ b/back/src/main/java/com/back/domain/member/mentor/dto/MentorDto.java
@@ -6,12 +6,15 @@
 public record MentorDto(
     @Schema(description = "멘토 ID")
     Long mentorId,
+    @Schema(description = "멘토 회원 ID")
+    Long mentorMemberId,
     @Schema(description = "멘토 닉네임")
     String nickname
 ) {
     public static MentorDto from(Mentor mentor) {
         return new MentorDto(
             mentor.getId(),
+            mentor.getMember().getId(),
             mentor.getMember().getNickname()
         );
     }
diff --git a/back/src/main/java/com/back/domain/mentoring/mentoring/dto/MentoringWithTagsDto.java b/back/src/main/java/com/back/domain/mentoring/mentoring/dto/MentoringWithTagsDto.java
index 1331f751..67e2f730 100644
--- a/back/src/main/java/com/back/domain/mentoring/mentoring/dto/MentoringWithTagsDto.java
+++ b/back/src/main/java/com/back/domain/mentoring/mentoring/dto/MentoringWithTagsDto.java
@@ -14,6 +14,8 @@ public record MentoringWithTagsDto(
     List<String> tags,
     @Schema(description = "멘토 ID")
     Long mentorId,
+    @Schema(description = "멘토 회원 ID")
+    Long mentorMemberId,
     @Schema(description = "멘토 닉네임")
     String nickname
 ) {
@@ -23,6 +25,7 @@ public static MentoringWithTagsDto from(Mentoring mentoring) {
             mentoring.getTitle(),
             mentoring.getTagNames(),
             mentoring.getMentor().getId(),
+            mentoring.getMentor().getMember().getId(),
             mentoring.getMentor().getMember().getNickname()
         );
     }
diff --git a/back/src/main/java/com/back/domain/mentoring/mentoring/dto/response/ReviewResponse.java b/back/src/main/java/com/back/domain/mentoring/mentoring/dto/response/ReviewResponse.java
index 99291a55..c80f7e89 100644
--- a/back/src/main/java/com/back/domain/mentoring/mentoring/dto/response/ReviewResponse.java
+++ b/back/src/main/java/com/back/domain/mentoring/mentoring/dto/response/ReviewResponse.java
@@ -19,6 +19,8 @@ public record ReviewResponse(
 
     @Schema(description = "멘티 ID")
     Long menteeId,
+    @Schema(description = "멘티 회원 ID")
+    Long menteeMemberId,
     @Schema(description = "멘티 닉네임")
     String menteeNickname
 ) {
@@ -30,6 +32,7 @@ public static ReviewResponse from(Review review) {
             review.getCreateDate(),
             review.getModifyDate(),
             review.getMentee().getId(),
+            review.getMentee().getMember().getId(),
             review.getMentee().getMember().getNickname()
         );
     }
diff --git a/back/src/main/java/com/back/domain/mentoring/slot/constant/MentorSlotStatus.java b/back/src/main/java/com/back/domain/mentoring/slot/constant/MentorSlotStatus.java
index 13d16388..a13e097b 100644
--- a/back/src/main/java/com/back/domain/mentoring/slot/constant/MentorSlotStatus.java
+++ b/back/src/main/java/com/back/domain/mentoring/slot/constant/MentorSlotStatus.java
@@ -4,5 +4,6 @@ public enum MentorSlotStatus {
     AVAILABLE,  // 예약 가능
     PENDING,    // 예약 승인 대기
     APPROVED,   // 예약 승인됨(확정)
-    COMPLETED   // 멘토링 완료
+    COMPLETED,  // 멘토링 완료
+    EXPIRED     // 만료
 }
diff --git a/back/src/main/java/com/back/domain/mentoring/slot/dto/response/MentorSlotDto.java b/back/src/main/java/com/back/domain/mentoring/slot/dto/response/MentorSlotDto.java
index 2185b0ec..6644a768 100644
--- a/back/src/main/java/com/back/domain/mentoring/slot/dto/response/MentorSlotDto.java
+++ b/back/src/main/java/com/back/domain/mentoring/slot/dto/response/MentorSlotDto.java
@@ -10,6 +10,8 @@ public record MentorSlotDto(
     Long mentorSlotId,
     @Schema(description = "멘토 ID")
     Long mentorId,
+    @Schema(description = "멘토 회원 ID")
+    Long mentorMemberId,
     @Schema(description = "시작 일시")
     LocalDateTime startDateTime,
     @Schema(description = "종료 일시")
diff --git a/back/src/main/java/com/back/domain/mentoring/slot/repository/MentorSlotRepository.java b/back/src/main/java/com/back/domain/mentoring/slot/repository/MentorSlotRepository.java
index f97856e6..82c73db5 100644
--- a/back/src/main/java/com/back/domain/mentoring/slot/repository/MentorSlotRepository.java
+++ b/back/src/main/java/com/back/domain/mentoring/slot/repository/MentorSlotRepository.java
@@ -21,9 +21,15 @@ public interface MentorSlotRepository extends JpaRepository<MentorSlot, Long> {
         SELECT new com.back.domain.mentoring.slot.dto.response.MentorSlotDto(
             ms.id,
             ms.mentor.id,
+            ms.mentor.member.id,
             ms.startDateTime,
             ms.endDateTime,
-            ms.status,
+            CASE
+                WHEN ms.startDateTime < CURRENT_TIMESTAMP
+                    AND ms.status = com.back.domain.mentoring.slot.constant.MentorSlotStatus.AVAILABLE
+                THEN com.back.domain.mentoring.slot.constant.MentorSlotStatus.EXPIRED
+                ELSE ms.status
+            END,
             r.id
         )
         FROM MentorSlot ms
@@ -45,6 +51,7 @@ List<MentorSlotDto> findMySlots(
         SELECT new com.back.domain.mentoring.slot.dto.response.MentorSlotDto(
                 ms.id,
                 ms.mentor.id,
+                ms.mentor.member.id,
                 ms.startDateTime,
                 ms.endDateTime,
                 ms.status,
@@ -53,6 +60,7 @@ List<MentorSlotDto> findMySlots(
         FROM MentorSlot ms
         WHERE ms.mentor.id = :mentorId
         AND ms.status = 'AVAILABLE'
+        AND ms.startDateTime >= CURRENT_TIMESTAMP
         AND ms.startDateTime < :end
         AND ms.endDateTime >= :start
         ORDER BY ms.startDateTime ASC
diff --git a/back/src/test/java/com/back/domain/mentoring/slot/service/MentorSlotServiceTest.java b/back/src/test/java/com/back/domain/mentoring/slot/service/MentorSlotServiceTest.java
index 7995d3cc..7c3870e9 100644
--- a/back/src/test/java/com/back/domain/mentoring/slot/service/MentorSlotServiceTest.java
+++ b/back/src/test/java/com/back/domain/mentoring/slot/service/MentorSlotServiceTest.java
@@ -88,23 +88,24 @@ void getMyMentorSlots() {
             LocalDate  base = LocalDate.now().plusMonths(1);
             LocalDateTime startDate = base.atStartOfDay();
             LocalDateTime endDate = base.withDayOfMonth(base.lengthOfMonth()).atTime(23, 59);
+            Long memberId = mentor1.getMember().getId();
 
             MentorSlotDto slotDto1 = new MentorSlotDto(
-                1L, mentor1.getId(),
+                1L, mentor1.getId(), memberId,
                 mentorSlot1.getStartDateTime(),
                 mentorSlot1.getEndDateTime(),
                 MentorSlotStatus.AVAILABLE,
                 null
             );
             MentorSlotDto slotDto2 = new MentorSlotDto(
-                2L, mentor1.getId(),
+                2L, mentor1.getId(), memberId,
                 base.withDayOfMonth(2).atTime(10, 0),
                 base.withDayOfMonth(2).atTime(11, 0),
                 MentorSlotStatus.AVAILABLE,
                 null
             );
             MentorSlotDto slotDto3 = new MentorSlotDto(
-                3L, mentor1.getId(),
+                3L, mentor1.getId(), memberId,
                 base.withDayOfMonth(15).atTime(14, 0),
                 base.withDayOfMonth(15).atTime(15, 0),
                 MentorSlotStatus.AVAILABLE,
@@ -155,16 +156,17 @@ void getAvailableMentorSlots() {
             LocalDate  base = LocalDate.now().plusMonths(1);
             LocalDateTime startDate = base.atStartOfDay();
             LocalDateTime endDate = base.withDayOfMonth(base.lengthOfMonth()).atTime(23, 59);
+            Long memberId = mentor1.getMember().getId();
 
             MentorSlotDto slotDto1 = new MentorSlotDto(
-                1L, mentor1.getId(),
+                1L, mentor1.getId(), memberId,
                 mentorSlot1.getStartDateTime(),
                 mentorSlot1.getEndDateTime(),
                 MentorSlotStatus.AVAILABLE,
                 null
             );
             MentorSlotDto slotDto2 = new MentorSlotDto(
-                2L, mentor1.getId(),
+                2L, mentor1.getId(), memberId,
                 base.withDayOfMonth(2).atTime(10, 0),
                 base.withDayOfMonth(2).atTime(11, 0),
                 MentorSlotStatus.AVAILABLE,