diff --git a/src/main/java/com/petlog/docs/ScheduleControllerDocs.java b/src/main/java/com/petlog/docs/ScheduleControllerDocs.java
index 129fc54..5ec9b77 100644
--- a/src/main/java/com/petlog/docs/ScheduleControllerDocs.java
+++ b/src/main/java/com/petlog/docs/ScheduleControllerDocs.java
@@ -1,5 +1,6 @@
 package com.petlog.docs;
 
+import com.petlog.auth.resolver.Authenticated;
 import com.petlog.common.response.ApiResponse;
 import com.petlog.schedule.controller.dto.request.CreateScheduleRequestDto;
 import com.petlog.schedule.controller.dto.request.UpdateScheduleRequestDto;
@@ -19,7 +20,7 @@ public interface ScheduleControllerDocs {
 
     @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "201", description = "일정 생성에 성공하였습니다.")
     @Operation(summary = "일정 생성 API")
-    ResponseEntity<ApiResponse<Void>> createSchedule(@PathVariable final Long groupId, @RequestBody CreateScheduleRequestDto request);
+    ResponseEntity<ApiResponse<Void>> createSchedule(@Authenticated final Long memberId, @PathVariable final Long groupId, @RequestBody CreateScheduleRequestDto request);
 
     @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "200", description = "월별 일정 전체 조회에 성공하였습니다.")
     @Operation(summary = "월별 일정 전체 조회 API")
diff --git a/src/main/java/com/petlog/pet/controller/dto/response/GetPetInfoResponseDto.java b/src/main/java/com/petlog/pet/controller/dto/response/GetPetInfoResponseDto.java
index 0c812c2..3cf9cda 100644
--- a/src/main/java/com/petlog/pet/controller/dto/response/GetPetInfoResponseDto.java
+++ b/src/main/java/com/petlog/pet/controller/dto/response/GetPetInfoResponseDto.java
@@ -13,16 +13,4 @@ public record GetPetInfoResponseDto(
     GetPoopInfoDto poopInfo
 
 ) {
-    public GetPetInfoResponseDto(
-        final GetPetProfileDto profile,
-        final GetFeedingInfoDto feedingInfo,
-        final GetWateringInfoDto wateringInfo,
-        final GetPoopInfoDto poopInfo
-
-    ) {
-        this.profile = profile;
-        this.feedingInfo = feedingInfo;
-        this.wateringInfo = wateringInfo;
-        this.poopInfo = poopInfo;
-    }
 }
diff --git a/src/main/java/com/petlog/schedule/controller/ScheduleController.java b/src/main/java/com/petlog/schedule/controller/ScheduleController.java
index 9dbd6b3..d422700 100644
--- a/src/main/java/com/petlog/schedule/controller/ScheduleController.java
+++ b/src/main/java/com/petlog/schedule/controller/ScheduleController.java
@@ -1,11 +1,14 @@
 package com.petlog.schedule.controller;
 
+import com.petlog.auth.resolver.Authenticated;
 import com.petlog.common.response.ApiResponse;
 import com.petlog.docs.ScheduleControllerDocs;
 import com.petlog.schedule.controller.dto.request.CreateScheduleRequestDto;
 import com.petlog.schedule.controller.dto.request.UpdateScheduleRequestDto;
 import com.petlog.schedule.controller.dto.response.GetMonthlyScheduleResponseDto;
 import com.petlog.schedule.entity.ScheduleType;
+import com.petlog.schedule.service.ScheduleService;
+import com.petlog.schedule.service.dto.CreateScheduleDto;
 import com.petlog.schedule.service.dto.GetDailyScheduleDto;
 import com.petlog.schedule.service.dto.GetScheduleInfoDto;
 import lombok.RequiredArgsConstructor;
@@ -36,11 +39,25 @@
 @RestController
 public class ScheduleController implements ScheduleControllerDocs {
 
+    private final ScheduleService scheduleService;
+
     @PostMapping
     public ResponseEntity<ApiResponse<Void>> createSchedule(
+        @Authenticated final Long memberId,
         @PathVariable final Long groupId,
         @RequestBody CreateScheduleRequestDto request
         ) {
+        final CreateScheduleDto dto = new CreateScheduleDto(
+            request.title(),
+            request.isAllDay(),
+            request.startTime(),
+            request.endTime(),
+            request.tag(),
+            request.remindNotificationAt(),
+            request.memo()
+        );
+        scheduleService.createSchedule(memberId, groupId, dto);
+
         return ResponseEntity.ok(
             ApiResponse.success(CREATE_SCHEDULE)
         );
diff --git a/src/main/java/com/petlog/schedule/repository/ScheduleRepository.java b/src/main/java/com/petlog/schedule/repository/ScheduleRepository.java
new file mode 100644
index 0000000..4f1b204
--- /dev/null
+++ b/src/main/java/com/petlog/schedule/repository/ScheduleRepository.java
@@ -0,0 +1,7 @@
+package com.petlog.schedule.repository;
+
+import com.petlog.schedule.entity.Schedule;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ScheduleRepository extends JpaRepository<Schedule, Long> {
+}
diff --git a/src/main/java/com/petlog/schedule/service/ScheduleService.java b/src/main/java/com/petlog/schedule/service/ScheduleService.java
new file mode 100644
index 0000000..a645b39
--- /dev/null
+++ b/src/main/java/com/petlog/schedule/service/ScheduleService.java
@@ -0,0 +1,59 @@
+package com.petlog.schedule.service;
+
+import com.petlog.member.entity.Member;
+import com.petlog.member.repository.MemberRepository;
+import com.petlog.petgroup.entity.PetGroup;
+import com.petlog.petgroup.entity.PetGroupMember;
+import com.petlog.petgroup.repository.PetGroupMemberRepository;
+import com.petlog.petgroup.repository.PetGroupRepository;
+import com.petlog.schedule.entity.Schedule;
+import com.petlog.schedule.repository.ScheduleRepository;
+import com.petlog.schedule.service.dto.CreateScheduleDto;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@RequiredArgsConstructor
+@Service
+public class ScheduleService {
+
+    private final ScheduleRepository scheduleRepository;
+    private final MemberRepository memberRepository;
+    private final PetGroupRepository petGroupRepository;
+    private final PetGroupMemberRepository petGroupMemberRepository;
+
+    @Transactional
+    public void createSchedule(final Long memberId, final Long groupId, final CreateScheduleDto dto) {
+        final Member member = getMember(memberId);
+        final PetGroup petGroup = getPetGroup(groupId);
+        getPetGroupMember(member, petGroup);
+
+        final Schedule schedule = new Schedule(
+            petGroup,
+            member,
+            dto.title(),
+            dto.isAllDay(),
+            dto.startTime(),
+            dto.endTime(),
+            dto.remindNotificationAt(),
+            dto.tag(),
+            dto.memo()
+        );
+        scheduleRepository.save(schedule);
+    }
+
+    private Member getMember(final Long memberId) {
+        return memberRepository.findById(memberId)
+            .orElseThrow(() -> new IllegalArgumentException("존재하지 않는 회원입니다."));
+    }
+
+    private PetGroup getPetGroup(final Long groupId) {
+        return petGroupRepository.findById(groupId)
+            .orElseThrow(() -> new IllegalArgumentException("존재하지 않는 그룹입니다."));
+    }
+
+    private PetGroupMember getPetGroupMember(final Member member, final PetGroup petGroup) {
+        return petGroupMemberRepository.findByMemberAndPetGroup(member, petGroup)
+            .orElseThrow(() -> new IllegalArgumentException("그룹에 존재하지 않는 회원입니다."));
+    }
+}
diff --git a/src/main/java/com/petlog/schedule/service/dto/CreateScheduleDto.java b/src/main/java/com/petlog/schedule/service/dto/CreateScheduleDto.java
new file mode 100644
index 0000000..2434603
--- /dev/null
+++ b/src/main/java/com/petlog/schedule/service/dto/CreateScheduleDto.java
@@ -0,0 +1,18 @@
+package com.petlog.schedule.service.dto;
+
+import com.petlog.schedule.entity.ScheduleType;
+
+import java.time.LocalDateTime;
+
+public record CreateScheduleDto(
+
+    String title,
+    boolean isAllDay,
+    LocalDateTime startTime,
+    LocalDateTime endTime,
+    ScheduleType tag,
+    LocalDateTime remindNotificationAt,
+    String memo
+
+) {
+}