diff --git a/src/main/kotlin/roomescape/schedule/business/ScheduleService.kt b/src/main/kotlin/roomescape/schedule/business/ScheduleService.kt
index 12958b86..f2edfe9c 100644
--- a/src/main/kotlin/roomescape/schedule/business/ScheduleService.kt
+++ b/src/main/kotlin/roomescape/schedule/business/ScheduleService.kt
@@ -9,8 +9,12 @@ import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 import roomescape.admin.business.AdminService
 import roomescape.common.config.next
+import roomescape.common.dto.AuditInfo
+import roomescape.common.dto.OperatorInfo
+import roomescape.schedule.business.domain.ScheduleWithThemeSummary
 import roomescape.schedule.exception.ScheduleErrorCode
 import roomescape.schedule.infrastructure.persistence.ScheduleEntity
+import roomescape.schedule.infrastructure.persistence.ScheduleEntityFactory
 import roomescape.schedule.infrastructure.persistence.ScheduleRepository
 import roomescape.schedule.infrastructure.persistence.ScheduleStatus
 import roomescape.schedule.web.*
@@ -18,6 +22,15 @@ import java.time.LocalDate
 
 private val log: KLogger = KotlinLogging.logger {}
 
+/**
+ * Structure:
+ * - Public: 모두가 접근 가능
+ * - User: 회원(로그인된 사용자)가 사용 가능
+ * - All-Admin: 모든 관리자가 사용 가능
+ * - Store-Admin: 매장 관리자만 사용 가능
+ * - Other-Service: 다른 서비스에서 호출하는 메서드
+ * - Common: 공통 메서드
+ */
 @Service
 class ScheduleService(
     private val scheduleRepository: ScheduleRepository,
@@ -25,73 +38,25 @@ class ScheduleService(
     private val tsidFactory: TsidFactory,
     private val adminService: AdminService
 ) {
-
+    // ========================================
+    // Public (인증 불필요)
+    // ========================================
     @Transactional(readOnly = true)
-    fun findThemesByDate(date: LocalDate): AvailableThemeIdListResponse {
-        log.info { "[ScheduleService.findThemesByDate] 동일한 날짜의 모든 테마 조회: date=$date" }
+    fun getStoreScheduleByDate(storeId: Long, date: LocalDate): ScheduleWithThemeListResponse {
+        log.info { "[ScheduleService.getStoreScheduleByDate] 매장 일정 조회: storeId=${storeId}, date=$date" }
 
-        return AvailableThemeIdListResponse(scheduleRepository.findAllUniqueThemeIdByDate(date))
+        val schedules: List<ScheduleWithThemeSummary> =
+            scheduleRepository.findStoreSchedulesWithThemeByDate(storeId, date)
+
+        return schedules.toResponse()
             .also {
-                log.info { "[ScheduleService.findThemesByDate] date=${date} 인 ${it.themeIds.size}개 테마 조회 완료" }
-            }
-    }
-
-    @Transactional(readOnly = true)
-    fun findSchedules(date: LocalDate, themeId: Long): ScheduleListByDateResponse {
-        log.info { "[ScheduleService.findSchedules] 동일한 날짜와 테마인 모든 일정 조회: date=${date}, themeId=${themeId}" }
-
-        return scheduleRepository.findAllByDateAndThemeId(date, themeId)
-            .toListResponse()
-            .also {
-                log.info { "[ScheduleService.findSchedules] date=${date}, themeId=${themeId} 인 ${it.schedules.size}개 일정 조회 완료" }
-            }
-    }
-
-    @Transactional(readOnly = true)
-    fun findDetail(id: Long): ScheduleDetailResponse {
-        log.info { "[ScheduleService.findDetail] 일정 상세 정보조회 시작: id=$id" }
-
-        val schedule: ScheduleEntity = findOrThrow(id)
-
-        val createdBy = adminService.findOperatorOrUnknown(schedule.createdBy)
-        val updatedBy = adminService.findOperatorOrUnknown(schedule.updatedBy)
-
-        return schedule.toDetailResponse(createdBy, updatedBy)
-            .also {
-                log.info { "[ScheduleService.findDetail] 일정 상세 조회 완료: id=$id" }
-            }
-    }
-
-    @Transactional(readOnly = true)
-    fun findSummaryById(id: Long): ScheduleSummaryResponse {
-        log.info { "[ScheduleService.findDateTimeById] 일정 개요 조회 시작 : id=$id" }
-
-        return findOrThrow(id).toSummaryResponse()
-            .also {
-                log.info { "[ScheduleService.findDateTimeById] 일정 개요 조회 완료: id=$id" }
-            }
-    }
-
-    @Transactional
-    fun createSchedule(request: ScheduleCreateRequest): ScheduleCreateResponse {
-        log.info { "[ScheduleService.createSchedule] 일정 생성 시작: date=${request.date}, time=${request.time}, themeId=${request.themeId}" }
-
-        scheduleValidator.validateCanCreate(request)
-
-        val schedule = ScheduleEntity(
-            id = tsidFactory.next(),
-            date = request.date,
-            time = request.time,
-            themeId = request.themeId,
-            status = ScheduleStatus.AVAILABLE
-        )
-
-        return ScheduleCreateResponse(scheduleRepository.save(schedule).id)
-            .also {
-                log.info { "[ScheduleService.createSchedule] 일정 생성 완료: id=${it.id}" }
+                log.info { "[ScheduleService.getStoreScheduleByDate] storeId=${storeId}, date=$date 인 ${it.schedules.size}개 일정 조회 완료" }
             }
     }
 
+    // ========================================
+    // User (회원 로그인 필요)
+    // ========================================
     @Transactional
     fun holdSchedule(id: Long) {
         val schedule: ScheduleEntity = findOrThrow(id)
@@ -104,6 +69,64 @@ class ScheduleService(
         throw ScheduleException(ScheduleErrorCode.SCHEDULE_NOT_AVAILABLE)
     }
 
+    // ========================================
+    // All-Admin (본사, 매장 모두 사용가능)
+    // ========================================
+    @Transactional(readOnly = true)
+    fun searchSchedules(storeId: Long, date: LocalDate?, themeId: Long?): AdminScheduleSummaryListResponse {
+        log.info { "[ScheduleService.searchSchedules] 일정 검색 시작: storeId=$storeId, date=$date, themeId=$themeId" }
+
+        val searchDate = date ?: LocalDate.now()
+
+        val schedules: List<ScheduleWithThemeSummary> =
+            scheduleRepository.findStoreSchedulesWithThemeByDate(storeId, searchDate)
+                .filter { (themeId == null) || (it.themeId == themeId) }
+                .sortedBy { it.time }
+
+        return schedules.toAdminSummaryListResponse()
+            .also {
+                log.info { "[ScheduleService.searchSchedules] ${it.schedules.size} 개의 일정 조회 완료" }
+            }
+    }
+
+    @Transactional(readOnly = true)
+    fun findScheduleAuditOrUnknown(id: Long): AuditInfo {
+        log.info { "[ScheduleService.findDetail] 일정 감사 정보 조회 시작: id=$id" }
+
+        val schedule: ScheduleEntity = findOrThrow(id)
+
+        val createdBy: OperatorInfo = adminService.findOperatorOrUnknown(schedule.createdBy)
+        val updatedBy: OperatorInfo = adminService.findOperatorOrUnknown(schedule.updatedBy)
+
+        return AuditInfo(schedule.createdAt, createdBy, schedule.updatedAt, updatedBy)
+            .also { log.info { "[ScheduleService.findDetail] 일정 감사 정보 조회 완료: id=$id" } }
+    }
+
+    // ========================================
+    // Store-Admin (매장 관리자 로그인 필요)
+    // ========================================
+    @Transactional
+    fun createSchedule(storeId: Long, request: ScheduleCreateRequest): ScheduleCreateResponse {
+        log.info { "[ScheduleService.createSchedule] 일정 생성 시작: storeId=${storeId}, date=${request.date}, time=${request.time}, themeId=${request.themeId}" }
+
+        scheduleValidator.validateCanCreate(storeId, request)
+
+        val schedule = ScheduleEntityFactory.create(
+            id = tsidFactory.next(),
+            date = request.date,
+            time = request.time,
+            storeId = storeId,
+            themeId = request.themeId
+        ).also {
+            scheduleRepository.save(it)
+        }
+
+        return ScheduleCreateResponse(schedule.id)
+            .also {
+                log.info { "[ScheduleService.createSchedule] 일정 생성 완료: id=${it.id}" }
+            }
+    }
+
     @Transactional
     fun updateSchedule(id: Long, request: ScheduleUpdateRequest) {
         log.info { "[ScheduleService.updateSchedule] 일정 수정 시작: id=$id, request=${request}" }
@@ -113,14 +136,11 @@ class ScheduleService(
             return
         }
 
-        val schedule: ScheduleEntity = findOrThrow(id)
+        val schedule: ScheduleEntity = findOrThrow(id).also {
+            scheduleValidator.validateCanUpdate(it, request)
+        }
 
-        scheduleValidator.validateCanUpdate(schedule, request)
-
-        schedule.modifyIfNotNull(
-            request.time,
-            request.status
-        ).also {
+        schedule.modifyIfNotNull(request.time, request.status).also {
             log.info { "[ScheduleService.updateSchedule] 일정 수정 완료: id=$id, request=${request}" }
         }
     }
@@ -129,15 +149,31 @@ class ScheduleService(
     fun deleteSchedule(id: Long) {
         log.info { "[ScheduleService.deleteSchedule] 일정 삭제 시작: id=$id" }
 
-        val schedule: ScheduleEntity = findOrThrow(id)
-
-        scheduleValidator.validateCanDelete(schedule)
+        val schedule: ScheduleEntity = findOrThrow(id).also {
+            scheduleValidator.validateCanDelete(it)
+        }
 
         scheduleRepository.delete(schedule).also {
             log.info { "[ScheduleService.deleteSchedule] 일정 삭제 완료: id=$id" }
         }
     }
 
+    // ========================================
+    // Other-Service (API 없이 다른 서비스에서 호출)
+    // ========================================
+    @Transactional(readOnly = true)
+    fun findSummaryById(id: Long): ScheduleSummaryResponse {
+        log.info { "[ScheduleService.findDateTimeById] 일정 개요 조회 시작 : id=$id" }
+
+        return findOrThrow(id).toSummaryResponse()
+            .also {
+                log.info { "[ScheduleService.findDateTimeById] 일정 개요 조회 완료: id=$id" }
+            }
+    }
+
+    // ========================================
+    // Common (공통 메서드)
+    // ========================================
     private fun findOrThrow(id: Long): ScheduleEntity {
         log.info { "[ScheduleService.findOrThrow] 일정 조회 시작: id=$id" }