diff --git a/src/main/java/com/campick/server/api/chat/controller/ChatController.java b/src/main/java/com/campick/server/api/chat/controller/ChatController.java
index c465aab..7dcffab 100644
--- a/src/main/java/com/campick/server/api/chat/controller/ChatController.java
+++ b/src/main/java/com/campick/server/api/chat/controller/ChatController.java
@@ -35,7 +35,7 @@ public ResponseEntity<ApiResponse<Long>> startChat(@RequestBody ChatRoomReqDto c
     }
 
     @GetMapping("/{chatRoomId}")
-    public ResponseEntity<ApiResponse<ChatRoomPageResDto<ChatMessage>>> getChatRoom(@PathVariable Long chatRoomId,
+    public ResponseEntity<ApiResponse<ChatRoomPageResDto<ChatMessageResDto>>> getChatRoom(@PathVariable Long chatRoomId,
                                                                    @RequestParam(defaultValue = "0") Integer page,
                                                                    @RequestParam(defaultValue = "20") Integer size) {
         Pageable pageable = PageRequest.of(page, size);
diff --git a/src/main/java/com/campick/server/api/chat/service/ChatService.java b/src/main/java/com/campick/server/api/chat/service/ChatService.java
index 9dbbbdb..c586763 100644
--- a/src/main/java/com/campick/server/api/chat/service/ChatService.java
+++ b/src/main/java/com/campick/server/api/chat/service/ChatService.java
@@ -113,13 +113,21 @@ public Long startChatRoom(ChatRoomReqDto chatRoomReqDto, Long memberId) {
         return chatRoom.getId();
     }
 
-    public ChatRoomPageResDto<ChatMessage> getChatRoom(Long chatRoomId, Pageable pageable) {
+    public ChatRoomPageResDto<ChatMessageResDto> getChatRoom(Long chatRoomId, Pageable pageable) {
         ChatRoom chatRoom = chatRoomRepository.findDetailById(chatRoomId).orElseThrow(
                 () -> new NotFoundException(ErrorStatus.CHAT_NOT_FOUND.getMessage())
         );
         Page<ChatMessage> chatMessages = chatMessageRepository.findByChatRoomIdOrderByCreatedAtDesc(chatRoomId, pageable);
+        Page<ChatMessageResDto> chatMessageResDtos = chatMessages.map(
+                cm -> ChatMessageResDto.builder()
+                        .message(cm.getMessage())
+                        .senderId(cm.getMember().getId())
+                        .sendAt(TimeUtil.getTimeAgo(cm.getCreatedAt()))
+                        .isRead(cm.getIsRead())
+                        .build()
+        );
 
-        return convertToChatRoomResDto(chatRoom, chatMessages);
+        return convertToChatRoomResDto(chatRoom, chatMessageResDtos);
     }
 
     public void readChatRoom(Long chatRoomId, Long memberId) {
@@ -258,14 +266,14 @@ public void broadcastSoldEvent(WebSocketSession session, JsonNode data) {
         }
     }
 
-    private ChatRoomPageResDto<ChatMessage> convertToChatRoomResDto(ChatRoom chatRoom, Page<ChatMessage> chatMessages) {
+    private ChatRoomPageResDto<ChatMessageResDto> convertToChatRoomResDto(ChatRoom chatRoom, Page<ChatMessageResDto> chatMessages) {
         String thumbnailImage = chatRoom.getProduct().getImages().stream()
                 .filter(ProductImage::getIsThumbnail)
                 .map(ProductImage::getImageUrl)
                 .findFirst()
                 .orElse(null);
 
-        ChatRoomPageResDto<ChatMessage> chatRoomPageResDto = new ChatRoomPageResDto<>(chatMessages);
+        ChatRoomPageResDto<ChatMessageResDto> chatRoomPageResDto = new ChatRoomPageResDto<>(chatMessages);
 
         chatRoomPageResDto.setSellerId(chatRoom.getSeller().getId());
         chatRoomPageResDto.setSellerNickname(chatRoom.getSeller().getNickname());