diff --git a/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/ItemController.java b/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/ItemController.java
index de43ed7..e8ce5fc 100644
--- a/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/ItemController.java
+++ b/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/ItemController.java
@@ -7,6 +7,7 @@
 import org.sopt.carrotMarket.service.ItemService;
 import org.sopt.carrotMarket.service.dto.GetAllItemsInfoResponseDTO;
 import org.sopt.carrotMarket.service.dto.RegisterItemDTO;
+import org.sopt.carrotMarket.service.dto.RegisterItemResponseDTO;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
@@ -22,8 +23,9 @@ public class ItemController {
     @PostMapping("/item")
     public ResponseEntity<BaseResponse<?>> registerItem(@RequestHeader final Long memberId,
                                                         @ModelAttribute final RegisterItemDTO registerItemDTO) {
-        itemService.registerItem(memberId, registerItemDTO);
-        return ApiResponseUtil.success(SuccessMessage.ITEM_REGISTER_SUCCESS);
+        RegisterItemResponseDTO registerItemResponseDTO = itemService.registerItem(memberId, registerItemDTO);
+
+        return ApiResponseUtil.success(SuccessMessage.ITEM_REGISTER_SUCCESS, registerItemResponseDTO);
     }
 
     //memberID에 해당되는 모든 물건 GET
diff --git a/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/MemberController.java b/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/MemberController.java
index 0b42f8f..0c1f3b2 100644
--- a/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/MemberController.java
+++ b/carrotMarket/src/main/java/org/sopt/carrotMarket/controller/MemberController.java
@@ -9,6 +9,7 @@
 import org.sopt.carrotMarket.domain.Member;
 import org.sopt.carrotMarket.service.MemberService;
 import org.sopt.carrotMarket.service.dto.RegisterMemberRequestDTO;
+import org.sopt.carrotMarket.service.dto.RegisterMemberResponseDTO;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -24,7 +25,7 @@ public class MemberController {
 
     @PostMapping("/member")
     public ResponseEntity<BaseResponse<?>> createMember(@RequestBody RegisterMemberRequestDTO member) {
-        memberService.registerMember(member);
-        return ApiResponseUtil.success(SuccessMessage.MEMBER_REGISTER_SUCCESS);
+        RegisterMemberResponseDTO registerMemberResponseDTO = memberService.registerMember(member);
+        return ApiResponseUtil.success(SuccessMessage.MEMBER_REGISTER_SUCCESS, registerMemberResponseDTO);
     }
 }
diff --git a/carrotMarket/src/main/java/org/sopt/carrotMarket/service/ItemService.java b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/ItemService.java
index 99f8b66..fe4febb 100644
--- a/carrotMarket/src/main/java/org/sopt/carrotMarket/service/ItemService.java
+++ b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/ItemService.java
@@ -13,6 +13,7 @@
 import org.sopt.carrotMarket.repository.MemberRepository;
 import org.sopt.carrotMarket.service.dto.GetAllItemsInfoResponseDTO;
 import org.sopt.carrotMarket.service.dto.RegisterItemDTO;
+import org.sopt.carrotMarket.service.dto.RegisterItemResponseDTO;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -33,7 +34,7 @@ public class ItemService {
     private static final String BLOG_S3_UPLOAD_FOLER = "blog/";
 
     @Transactional
-    public void registerItem(final Long memberId, final RegisterItemDTO registerItemDTO) {
+    public RegisterItemResponseDTO registerItem(final Long memberId, final RegisterItemDTO registerItemDTO) {
 
         Member member = findMemberById(memberId);
 
@@ -49,6 +50,7 @@ public void registerItem(final Long memberId, final RegisterItemDTO registerItem
                 registerItemDTO.detailInfo(),
                 Location.valueOf(registerItemDTO.hopeTradeSpot()));
         itemRepository.save(item);
+        return RegisterItemResponseDTO.of(item.getId());
 
         } catch (RuntimeException | IOException e) {
             throw new RuntimeException(e.getMessage());
diff --git a/carrotMarket/src/main/java/org/sopt/carrotMarket/service/MemberService.java b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/MemberService.java
index c7b2383..23b8b2a 100644
--- a/carrotMarket/src/main/java/org/sopt/carrotMarket/service/MemberService.java
+++ b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/MemberService.java
@@ -5,6 +5,7 @@
 import org.sopt.carrotMarket.domain.Member;
 import org.sopt.carrotMarket.repository.MemberRepository;
 import org.sopt.carrotMarket.service.dto.RegisterMemberRequestDTO;
+import org.sopt.carrotMarket.service.dto.RegisterMemberResponseDTO;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -16,8 +17,9 @@ public class MemberService {
     private final MemberRepository memberRepository;
 
     @Transactional
-    public void registerMember(RegisterMemberRequestDTO member) {
+    public RegisterMemberResponseDTO registerMember(RegisterMemberRequestDTO member) {
         Member newMember = Member.register(member.name());
         memberRepository.save(newMember);
+        return RegisterMemberResponseDTO.of(newMember.getId());
     }
 }
diff --git a/carrotMarket/src/main/java/org/sopt/carrotMarket/service/dto/RegisterItemResponseDTO.java b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/dto/RegisterItemResponseDTO.java
new file mode 100644
index 0000000..129287f
--- /dev/null
+++ b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/dto/RegisterItemResponseDTO.java
@@ -0,0 +1,15 @@
+package org.sopt.carrotMarket.service.dto;
+
+import lombok.Builder;
+import org.sopt.carrotMarket.domain.Item;
+
+@Builder
+public record RegisterItemResponseDTO(
+        Long itemId
+) {
+    public static RegisterItemResponseDTO of(Long itemId) {
+        return RegisterItemResponseDTO.builder()
+                .itemId(itemId)
+                .build();
+    }
+}
diff --git a/carrotMarket/src/main/java/org/sopt/carrotMarket/service/dto/RegisterMemberResponseDTO.java b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/dto/RegisterMemberResponseDTO.java
new file mode 100644
index 0000000..13c4c10
--- /dev/null
+++ b/carrotMarket/src/main/java/org/sopt/carrotMarket/service/dto/RegisterMemberResponseDTO.java
@@ -0,0 +1,15 @@
+package org.sopt.carrotMarket.service.dto;
+
+import lombok.Builder;
+import org.springframework.http.ResponseEntity;
+
+@Builder
+public record RegisterMemberResponseDTO(
+        Long memberId
+) {
+    public static RegisterMemberResponseDTO of(Long memberId) {
+        return RegisterMemberResponseDTO.builder()
+                .memberId(memberId)
+                .build();
+    }
+}