diff --git a/src/dtos/aiSummaryDto.ts b/src/dtos/aiSummaryDto.ts
index 9b562db..65fb91b 100644
--- a/src/dtos/aiSummaryDto.ts
+++ b/src/dtos/aiSummaryDto.ts
@@ -13,6 +13,16 @@ export interface EmotionItem {
   percentage: number; // 퍼센트 값 (0-100)
 }
 
+/**
+ * 하이라이트(북마크) 항목
+ */
+export interface HighlightItem {
+  timeline: string; // "13:28" 형식
+  content: string; // 북마크 메시지
+  userId: number;
+  nickname: string;
+}
+
 /**
  * AI 채팅 요약 응답 DTO
  */
@@ -21,7 +31,8 @@ export interface GenerateSummaryResponseDto {
   roomTitle: string;
   videoTitle: string;
   topicSummary: string;
-  emotionAnalysis: EmotionItem[]; // string에서 배열로 변경
+  emotionAnalysis: EmotionItem[];
+  highlights: HighlightItem[];
   timestamp: string;
 }
 
diff --git a/src/routes/aiSummaryRoutes.ts b/src/routes/aiSummaryRoutes.ts
index d3ac203..42e65c1 100644
--- a/src/routes/aiSummaryRoutes.ts
+++ b/src/routes/aiSummaryRoutes.ts
@@ -50,10 +50,19 @@ const router = express.Router();
  *                       example: 영상제목
  *                     topicSummary:
  *                       type: string
- *                       example: 전체 대화 주제 요약
+ *                       example: 영상을 보며 즐거운 시간을 보냈네요!
  *                     emotionAnalysis:
  *                       type: array
  *                       description: 감정별 분석 결과
+ *                       items:
+ *                         type: object
+ *                         properties:
+ *                           emotion:
+ *                             type: string
+ *                             example: 기쁨
+ *                           percentage:
+ *                             type: number
+ *                             example: 40
  *                       example:
  *                         - emotion: "기쁨"
  *                           percentage: 40
@@ -63,6 +72,37 @@ const router = express.Router();
  *                           percentage: 20
  *                         - emotion: "슬픔"
  *                           percentage: 10
+ *                     highlights:
+ *                       type: array
+ *                       description: 북마크 하이라이트 리스트
+ *                       items:
+ *                         type: object
+ *                         properties:
+ *                           timeline:
+ *                             type: string
+ *                             example: "13:28"
+ *                           content:
+ *                             type: string
+ *                             example: "재밌는 장면"
+ *                           userId:
+ *                             type: number
+ *                             example: 123
+ *                           nickname:
+ *                             type: string
+ *                             example: "사용자닉네임"
+ *                       example:
+ *                         - timeline: "13:28"
+ *                           content: "재밌는 장면"
+ *                           userId: 123
+ *                           nickname: "홍길동"
+ *                         - timeline: "27:18"
+ *                           content: "감동적인 부분"
+ *                           userId: 456
+ *                           nickname: "김철수"
+ *                         - timeline: "1:02:35"
+ *                           content: "결정적 순간"
+ *                           userId: 789
+ *                           nickname: "이영희"
  *                     timestamp:
  *                       type: string
  *                       format: date-time
diff --git a/src/services/aiSummaryService.ts b/src/services/aiSummaryService.ts
index bee4859..feb128b 100644
--- a/src/services/aiSummaryService.ts
+++ b/src/services/aiSummaryService.ts
@@ -13,6 +13,7 @@ import {
   ClaudeResponseDto,
   AISummaryFeedbackData,
   EmotionItem,
+  HighlightItem,
 } from '../dtos/aiSummaryDto.js';
 
 const BEDROCK_MODEL_ID = 'anthropic.claude-3-5-sonnet-20240620-v1:0';
@@ -105,10 +106,47 @@ export class AiSummaryService {
       .join('\n')
       .slice(0, MAX_CONTENT_LENGTH);
 
-    // 6. Claude 3.5 Sonnet 모델 호출
+    // 6. 북마크 조회 추가
+    const bookmarks = await prisma.bookmark.findMany({
+      where: { roomId: data.roomId },
+      include: {
+        user: {
+          select: {
+            userId: true,
+            nickname: true,
+          },
+        },
+      },
+      orderBy: { timeline: 'asc' }, // 시간순 정렬
+    });
+
+    // 북마크를 하이라이트 형시ㄱ
+    const highlights: HighlightItem[] = bookmarks.map(bookmark => {
+      const totalSeconds = bookmark.timeline || 0;
+      const hours = Math.floor(totalSeconds / 3600);
+      const minutes = Math.floor((totalSeconds % 3600) / 60);
+      const seconds = totalSeconds % 60;
+
+      // HH:MM:SS 또는 MM:SS 형식으로 변환
+      let timeline = '';
+      if (hours > 0) {
+        timeline = `${String(hours).padStart(2, '0')}:${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`;
+      } else {
+        timeline = `${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`;
+      }
+
+      return {
+        timeline,
+        content: bookmark.content || '',
+        userId: bookmark.user.userId,
+        nickname: bookmark.user.nickname,
+      };
+    });
+
+    // 7. Claude 3.5 Sonnet 모델 호출 (기존 코드와 동일)
     const summary = await this.callClaudeModel(chatContent, video.title);
 
-    // 7. 임시 summaryId 생성
+    // 8. 임시 summaryId 생성
     const summaryId = `summary_${data.roomId}_${randomUUID()}`;
 
     return {
@@ -117,6 +155,7 @@ export class AiSummaryService {
       videoTitle: video.title,
       topicSummary: summary.topicSummary,
       emotionAnalysis: summary.emotionAnalysis,
+      highlights, // 북마크 리스트
       timestamp: new Date().toISOString(),
     };
   }