diff --git a/src/backend/chatting-server/src/main/java/chattingserver/controller/ChatController.java b/src/backend/chatting-server/src/main/java/chattingserver/controller/ChatController.java
index e3edbd69..299ce772 100644
--- a/src/backend/chatting-server/src/main/java/chattingserver/controller/ChatController.java
+++ b/src/backend/chatting-server/src/main/java/chattingserver/controller/ChatController.java
@@ -8,7 +8,6 @@
 import chattingserver.service.ChatMessageService;
 import chattingserver.service.RoomService;
 //import chattingserver.util.constant.ErrorCode;
-import chattingserver.util.exception.CustomAPIException;
 import com.lalala.exception.BusinessException;
 import com.lalala.exception.ErrorCode;
 import com.lalala.response.BaseResponse;
diff --git a/src/backend/chatting-server/src/main/java/chattingserver/util/constant/ErrorCode.java b/src/backend/chatting-server/src/main/java/chattingserver/util/constant/ErrorCode.java
deleted file mode 100644
index 5416560d..00000000
--- a/src/backend/chatting-server/src/main/java/chattingserver/util/constant/ErrorCode.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package chattingserver.util.constant;
-
-import chattingserver.dto.response.CommonAPIError;
-import lombok.Getter;
-
-import java.time.LocalDateTime;
-
-@Getter
-public enum ErrorCode {
-    ROOM_NOT_FOUND_ERROR(4003, "CHATTING-001", "id에 해당하는 채팅방이 없습니다.");
-
-    private final int status;
-    private final String code;
-    private final String description;
-
-    ErrorCode(int status, String code, String description) {
-        this.status = status;
-        this.code = code;
-        this.description = description;
-    }
-
-    public CommonAPIError toErrorResponseDto(String msg) {
-        return CommonAPIError
-                .builder()
-                .status(this.status)
-                .errorCode(this.code)
-                .description(this.description)
-                .errorMsg(msg)
-                .timestamp(LocalDateTime.now())
-                .build();
-    }
-}
diff --git a/src/backend/chatting-server/src/main/java/chattingserver/util/exception/CustomAPIException.java b/src/backend/chatting-server/src/main/java/chattingserver/util/exception/CustomAPIException.java
deleted file mode 100644
index eeebffd8..00000000
--- a/src/backend/chatting-server/src/main/java/chattingserver/util/exception/CustomAPIException.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package chattingserver.util.exception;
-
-import chattingserver.util.constant.ErrorCode;
-import lombok.Getter;
-
-@Getter
-public class CustomAPIException extends RuntimeException{
-
-    private static final long serialVersionUID = 1L;
-
-    private final String description;
-    private final String code;
-    private final int status;
-    private String errorMsg;
-
-    public CustomAPIException(ErrorCode errorCode, String errorMsg){
-        this.description = errorCode.getDescription();
-        this.status = errorCode.getStatus();
-        this.code = errorCode.getCode();
-        this.errorMsg = errorMsg;
-    }
-}
\ No newline at end of file