diff --git a/server/src/main/java/org/tattour/server/domain/cart/controller/CartController.java b/server/src/main/java/org/tattour/server/domain/cart/controller/CartController.java
index 7e4f401..1f80049 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/controller/CartController.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/controller/CartController.java
@@ -20,7 +20,8 @@
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
-import org.tattour.server.domain.cart.controller.dto.request.SaveCartReq;
+import org.tattour.server.domain.cart.controller.dto.request.CartItemReq;
+import org.tattour.server.domain.cart.controller.dto.request.UpdateCartCountReq;
 import org.tattour.server.domain.cart.controller.dto.response.CartItemsRes;
 import org.tattour.server.domain.cart.facade.CartFacade;
 import org.tattour.server.global.config.annotations.UserId;
@@ -64,9 +65,9 @@ public class CartController {
     @PostMapping
     public ResponseEntity<?> saveCartItem(
             @Parameter(hidden = true) @UserId Integer userId,
-            @RequestBody @Valid SaveCartReq saveCartReq
+            @RequestBody @Valid CartItemReq cartItemReq
     ) {
-        cartFacade.saveCartItem(userId, saveCartReq);
+        cartFacade.saveCartItem(userId, cartItemReq);
         return BaseResponse.success(SuccessType.CREATE_SUCCESS);
     }
 
@@ -92,7 +93,7 @@ public ResponseEntity<?> getUserCartItem(
         return BaseResponse.success(SuccessType.GET_SUCCESS, cartFacade.getUserCartItems(userId));
     }
 
-    @Operation(summary = "장바구니 수량 1개 더하기")
+    @Operation(summary = "장바구니 수량 일괄 수정")
     @ApiResponses(value = {
             @ApiResponse(
                     responseCode = "200",
@@ -111,11 +112,11 @@ public ResponseEntity<?> getUserCartItem(
                     description = "알 수 없는 서버 에러가 발생했습니다.",
                     content = @Content(schema = @Schema(implementation = FailResponse.class)))
     })
-    @PatchMapping("/{cartId}")
-    public ResponseEntity<?> addCartCount(
+    @PatchMapping
+    public ResponseEntity<?> updateCartCount(
             @Parameter(hidden = true) @UserId Integer userId,
-            @PathVariable Integer cartId) {
-        cartFacade.increaseCartCount(userId, cartId);
+            @RequestBody @Valid UpdateCartCountReq req) {
+        cartFacade.updateCartsCount(userId, req);
         return BaseResponse.success(SuccessType.UPDATE_SUCCESS);
     }
 
@@ -141,7 +142,7 @@ public ResponseEntity<?> addCartCount(
     @DeleteMapping("/{cartId}")
     public ResponseEntity<?> deleteCartCount(
             @Parameter(hidden = true) @UserId Integer userId,
-            @PathVariable Integer cartId) {
+            @Parameter(description = "장바구니 Id") @PathVariable Integer cartId) {
         cartFacade.deleteCartItem(userId, cartId);
         return BaseResponse.success(SuccessType.DELETE_SUCCESS);
     }
diff --git a/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/CartCountReq.java b/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/CartCountReq.java
new file mode 100644
index 0000000..1ece005
--- /dev/null
+++ b/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/CartCountReq.java
@@ -0,0 +1,17 @@
+package org.tattour.server.domain.cart.controller.dto.request;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import javax.validation.constraints.NotNull;
+import lombok.Getter;
+
+@Schema(description = "장바구니 수량 수정 Request")
+@Getter
+public class CartCountReq {
+    @Schema(description = "장바구니 Id")
+    @NotNull(message = "장바구니 id는 null일 수 없습니다.")
+    private int cartId;
+
+    @Schema(description = "장바구니 수량")
+    @NotNull(message = "장바구니 수량 null일 수 없습니다.")
+    private int count;
+}
diff --git a/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/SaveCartReq.java b/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/CartItemReq.java
similarity index 65%
rename from server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/SaveCartReq.java
rename to server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/CartItemReq.java
index 4b6e130..8333245 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/SaveCartReq.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/CartItemReq.java
@@ -1,5 +1,6 @@
 package org.tattour.server.domain.cart.controller.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import javax.validation.constraints.Min;
 import javax.validation.constraints.NotNull;
 import lombok.Getter;
@@ -7,10 +8,12 @@
 
 @Getter
 @NoArgsConstructor
-public class SaveCartReq {
+public class CartItemReq {
+    @Schema(description = "스티커 Id")
     @NotNull
     private int stickerId;
-    
+
+    @Schema(description = "스티커 수량")
     @NotNull
     @Min(1)
     private int count;
diff --git a/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/UpdateCartCountReq.java b/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/UpdateCartCountReq.java
new file mode 100644
index 0000000..e11f0ad
--- /dev/null
+++ b/server/src/main/java/org/tattour/server/domain/cart/controller/dto/request/UpdateCartCountReq.java
@@ -0,0 +1,12 @@
+package org.tattour.server.domain.cart.controller.dto.request;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.List;
+import lombok.Getter;
+
+@Schema(description = "장바구니 수량 일괄 수정 Request")
+@Getter
+public class UpdateCartCountReq {
+    @Schema(description = "장바구니 수량 수정 Request 목록")
+    private List<CartCountReq> cartCountReqs;
+}
diff --git a/server/src/main/java/org/tattour/server/domain/cart/domain/Cart.java b/server/src/main/java/org/tattour/server/domain/cart/domain/Cart.java
index 489684c..a55cc83 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/domain/Cart.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/domain/Cart.java
@@ -40,7 +40,7 @@ public void addCount(int count) {
         this.count += count;
     }
 
-    public void increaseCount() {
-        this.count += COUNT_INCREMENT;
+    public void updateCount(int count) {
+        this.count = count;
     }
 }
diff --git a/server/src/main/java/org/tattour/server/domain/cart/facade/CartFacade.java b/server/src/main/java/org/tattour/server/domain/cart/facade/CartFacade.java
index a553d06..f593766 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/facade/CartFacade.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/facade/CartFacade.java
@@ -1,14 +1,15 @@
 package org.tattour.server.domain.cart.facade;
 
-import org.tattour.server.domain.cart.controller.dto.request.SaveCartReq;
+import org.tattour.server.domain.cart.controller.dto.request.CartItemReq;
+import org.tattour.server.domain.cart.controller.dto.request.UpdateCartCountReq;
 import org.tattour.server.domain.cart.controller.dto.response.CartItemsRes;
 
 public interface CartFacade {
-    void saveCartItem(int userId, SaveCartReq req);
+    void saveCartItem(int userId, CartItemReq req);
 
     CartItemsRes getUserCartItems(int userId);
 
-    void increaseCartCount(int userId, int cartId);
+    void updateCartsCount(int userId, UpdateCartCountReq req);
 
     void deleteCartItem(int userId, int cartId);
 }
diff --git a/server/src/main/java/org/tattour/server/domain/cart/facade/impl/CartFacadeImpl.java b/server/src/main/java/org/tattour/server/domain/cart/facade/impl/CartFacadeImpl.java
index 970d543..7478057 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/facade/impl/CartFacadeImpl.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/facade/impl/CartFacadeImpl.java
@@ -6,7 +6,8 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
-import org.tattour.server.domain.cart.controller.dto.request.SaveCartReq;
+import org.tattour.server.domain.cart.controller.dto.request.CartItemReq;
+import org.tattour.server.domain.cart.controller.dto.request.UpdateCartCountReq;
 import org.tattour.server.domain.cart.controller.dto.response.CartItemsRes;
 import org.tattour.server.domain.cart.domain.Cart;
 import org.tattour.server.domain.cart.facade.CartFacade;
@@ -27,7 +28,7 @@ public class CartFacadeImpl implements CartFacade {
 
     @Override
     @Transactional
-    public void saveCartItem(int userId, SaveCartReq req) {
+    public void saveCartItem(int userId, CartItemReq req) {
         User user = userService.readUserById(userId);
         Sticker sticker = stickerProvider.getById(req.getStickerId());
 
@@ -36,6 +37,7 @@ public void saveCartItem(int userId, SaveCartReq req) {
 
     //todo : 배송 지역별 배송비 책정
     @Override
+    @Transactional(readOnly = true)
     public CartItemsRes getUserCartItems(int userId) {
         List<Cart> carts = cartService.findByUserId(userId);
         StickerOrderInfo stickerOrderInfo = stickerProvider.getStickerOrderInfoFromCart(carts);
@@ -46,14 +48,18 @@ public CartItemsRes getUserCartItems(int userId) {
     }
 
     @Override
-    public void increaseCartCount(int userId, int cartId) {
-        Cart cart = cartService.findByIdAndUserId(userId, cartId);
-        cartService.increaseCartCount(cart);
+    @Transactional
+    public void updateCartsCount(int userId, UpdateCartCountReq updateCartCountReq) {
+        updateCartCountReq.getCartCountReqs()
+                .forEach(req -> cartService
+                        .findByIdAndUserId(req.getCartId(), userId)
+                        .updateCount(req.getCount()));
     }
 
     @Override
+    @Transactional
     public void deleteCartItem(int userId, int cartId) {
-        Cart cart = cartService.findByIdAndUserId(userId, cartId);
+        Cart cart = cartService.findByIdAndUserId(cartId, userId);
         cartService.delete(cart);
     }
 }
\ No newline at end of file
diff --git a/server/src/main/java/org/tattour/server/domain/cart/service/CartService.java b/server/src/main/java/org/tattour/server/domain/cart/service/CartService.java
index 2777b75..cd1dcd3 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/service/CartService.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/service/CartService.java
@@ -13,14 +13,12 @@ public interface CartService {
 
     Optional<Cart> findByUserAndSticker(User user, Sticker sticker);
 
-    Cart findByIdAndUserId(int userId, int cartId);
+    Cart findByIdAndUserId(int id, int userId);
 
     void mergeOrAddToCart(User user, Sticker sticker, int count);
 
     Cart createNewCart(User user, Sticker sticker, int count);
 
-    void increaseCartCount(Cart cart);
-
     void delete(Cart cart);
 
     void deleteAllByUserId(User user);
diff --git a/server/src/main/java/org/tattour/server/domain/cart/service/impl/CartServiceImpl.java b/server/src/main/java/org/tattour/server/domain/cart/service/impl/CartServiceImpl.java
index 7f0f729..654fcde 100644
--- a/server/src/main/java/org/tattour/server/domain/cart/service/impl/CartServiceImpl.java
+++ b/server/src/main/java/org/tattour/server/domain/cart/service/impl/CartServiceImpl.java
@@ -4,7 +4,6 @@
 import java.util.Optional;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
 import org.tattour.server.domain.cart.domain.Cart;
 import org.tattour.server.domain.cart.repository.CartRepositoryImpl;
 import org.tattour.server.domain.cart.service.CartService;
@@ -34,7 +33,7 @@ public Optional<Cart> findByUserAndSticker(User user, Sticker sticker) {
     }
 
     @Override
-    public Cart findByIdAndUserId(int userId, int id) {
+    public Cart findByIdAndUserId(int id, int userId) {
         return cartRepositoryImpl.findByIdAndUser_Id(id, userId)
                 .orElseThrow(() -> new BusinessException(ErrorType.NOT_FOUND_CART_EXCEPTION));
     }
@@ -59,13 +58,6 @@ public Cart createNewCart(User user, Sticker sticker, int count) {
                 .build();
     }
 
-    @Override
-    @Transactional
-    public void increaseCartCount(Cart cart) {
-        cart.increaseCount();
-        cartRepositoryImpl.save(cart);
-    }
-
     @Override
     public void delete(Cart cart) {
         cartRepositoryImpl.delete(cart);