diff --git a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/AnswerController.java b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/AnswerController.java
index 8d0f9575..f0991cdb 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/AnswerController.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/AnswerController.java
@@ -99,6 +99,7 @@ public ResponseEntity<ApiResponseDto<SearchAnswerEntryResponse>> searchAnswers(
             description = """
                     답변 ID로 해당 답변의 상세 정보와 리포트를 조회합니다.
 
+                    - 일간 리포트 ID (dailyReportId, 리포트 없으면 null)
                     - 질문 내용 (questionText)
                     - 질문 카테고리 (interestCode)
                     - 답변 작성일 (answerDate)
@@ -206,6 +207,7 @@ public ResponseEntity<ApiResponseDto<CalendarRecentsResponse>> getCalendarRecent
                     특정 날짜의 답변 전체 정보를 조회합니다.
 
                     응답 데이터:
+                    - 일간 리포트 ID (dailyReportId, 리포트 없으면 null)
                     - 질문 내용 (questionText)
                     - 질문 카테고리 (interestCode)
                     - 답변 작성일 (answerDate)
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/dto/response/AnswerDetailResponse.java b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/dto/response/AnswerDetailResponse.java
index 366468e2..abfe837d 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/dto/response/AnswerDetailResponse.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/api/dto/response/AnswerDetailResponse.java
@@ -8,6 +8,9 @@
 @Schema(description = "답변 상세 조회 응답")
 public record AnswerDetailResponse(
 
+        @Schema(description = "일간 리포트 ID (댓글·좋아요 조회 시 사용)", example = "42")
+        Long dailyReportId,
+
         @Schema(description = "질문 내용", example = "오늘 가장 기뻤던 순간은?")
         String questionText,
 
@@ -31,6 +34,7 @@ public record AnswerDetailResponse(
 ) {
     public static AnswerDetailResponse from(AnswerDetailDto dto, String imageUrl) {
         return new AnswerDetailResponse(
+                dto.dailyReportId(),
                 dto.questionText(),
                 dto.interestCode() != null ? dto.interestCode().name() : null,
                 dto.answerDate(),
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/dto/AnswerDetailDto.java b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/dto/AnswerDetailDto.java
index 8b6eb94f..354aaa31 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/dto/AnswerDetailDto.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/dto/AnswerDetailDto.java
@@ -10,6 +10,7 @@
  * Repository 쿼리 결과를 담는 DTO
  */
 public record AnswerDetailDto(
+        Long dailyReportId,
         String questionText,
         InterestCode interestCode,
         LocalDate answerDate,
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/AnswerEntryQueryRepository.java b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/AnswerEntryQueryRepository.java
index c0c89904..f65a0e2f 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/AnswerEntryQueryRepository.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/AnswerEntryQueryRepository.java
@@ -108,7 +108,7 @@ List<SearchAnswerEntryDto> findRecentAnswers(
      */
     @Query("""
         select new com.devkor.ifive.nadab.domain.dailyreport.core.dto.AnswerDetailDto(
-            ae.question.questionText, ae.question.interest.code, ae.date, ae.content, dr.content, e.code, ae.imageKey
+            dr.id, ae.question.questionText, ae.question.interest.code, ae.date, ae.content, dr.content, e.code, ae.imageKey
         )
         from AnswerEntry ae
         left join DailyReport dr on dr.answerEntry = ae and dr.status = com.devkor.ifive.nadab.domain.dailyreport.core.entity.DailyReportStatus.COMPLETED
@@ -126,7 +126,7 @@ Optional<AnswerDetailDto> findDetailByAnswerId(
      */
     @Query("""
         select new com.devkor.ifive.nadab.domain.dailyreport.core.dto.AnswerDetailDto(
-            ae.question.questionText, ae.question.interest.code, ae.date, ae.content, dr.content, e.code, ae.imageKey
+            dr.id, ae.question.questionText, ae.question.interest.code, ae.date, ae.content, dr.content, e.code, ae.imageKey
         )
         from AnswerEntry ae
         left join DailyReport dr on dr.answerEntry = ae and dr.status = com.devkor.ifive.nadab.domain.dailyreport.core.entity.DailyReportStatus.COMPLETED
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/DailyReportRepository.java b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/DailyReportRepository.java
index 02de7cdb..f4bfab72 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/DailyReportRepository.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/dailyreport/core/repository/DailyReportRepository.java
@@ -44,6 +44,7 @@ public interface DailyReportRepository extends JpaRepository<DailyReport, Long>
      */
     @Query("""
         select new com.devkor.ifive.nadab.domain.dailyreport.core.dto.AnswerDetailDto(
+            dr.id,
             q.questionText,
             i.code,
             ae.date,