diff --git a/src/auth/auth.controller.ts b/src/auth/auth.controller.ts
index f8cda9c..1f31684 100644
--- a/src/auth/auth.controller.ts
+++ b/src/auth/auth.controller.ts
@@ -11,15 +11,15 @@ import {
   ApiUnauthorizedResponse,
 } from "@nestjs/swagger";
 import { Request } from "express";
+import { BadRequestError } from "src/error/bad-request-error";
+import { ConflictError } from "src/error/conflict-error";
+import { ForbiddenError } from "src/error/forbidden-error";
+import { UnauthorizedError } from "src/error/unauthorized-error";
 import { CreateUserDto } from "src/user/dto/create-user.dto";
 import { LoginUserDto } from "src/user/dto/login-user.dto";
-import { CreateUserBadRequestError } from "src/user/exceptions/create-user-badrequest-error.exception";
-import { CreateUserConflictError } from "src/user/exceptions/create-user-conflict-error.exception";
 import { CreateUserResponse } from "src/user/responses/create-user-response";
 
 import { AuthService } from "./auth.service";
-import { ForbiddenError } from "./exception/ForbiddenError";
-import { UnauthorizedError } from "./exception/UnauthorizedError";
 import { type JwtUser } from "./jwt/jwt.interface";
 import { JwtRefreshGuard } from "./jwt/jwt-refresh.guard";
 import { LocalAuthGuard } from "./local/local-auth.guard";
@@ -41,11 +41,11 @@ export class AuthController {
   })
   @ApiConflictResponse({
     description: "使用者資料重覆",
-    type: CreateUserConflictError,
+    type: ConflictError,
   })
   @ApiBadRequestResponse({
     description: "使用者格式不符",
-    type: CreateUserBadRequestError,
+    type: BadRequestError,
   })
   async register(@Body() userDto: CreateUserDto) {
     return this.authService.register(userDto);
diff --git a/src/auth/responses/generate-token.response.ts b/src/auth/responses/generate-token.response.ts
index 441f1a9..c20bc64 100644
--- a/src/auth/responses/generate-token.response.ts
+++ b/src/auth/responses/generate-token.response.ts
@@ -19,7 +19,7 @@ export class GenerateTokenResponse {
 
   @ApiProperty({
     description: "HTTP Code",
-    example: "201",
+    example: 201,
     type: "number",
   })
   public readonly statusCode: number;
diff --git a/src/error/bad-request-error.ts b/src/error/bad-request-error.ts
new file mode 100644
index 0000000..4129cb5
--- /dev/null
+++ b/src/error/bad-request-error.ts
@@ -0,0 +1,17 @@
+import { ApiProperty } from "@nestjs/swagger";
+
+export class BadRequestError {
+  @ApiProperty({
+    description: "HTTP Code",
+    example: 400,
+    type: "number",
+  })
+  public readonly statusCode: number;
+
+  @ApiProperty({
+    description: "Error Message",
+    example: ["Error Message"],
+    type: "array",
+  })
+  public readonly error: string[];
+}
diff --git a/src/error/conflict-error.ts b/src/error/conflict-error.ts
new file mode 100644
index 0000000..556ba4f
--- /dev/null
+++ b/src/error/conflict-error.ts
@@ -0,0 +1,17 @@
+import { ApiProperty } from "@nestjs/swagger";
+
+export class ConflictError {
+  @ApiProperty({
+    description: "HTTP Code",
+    example: 409,
+    type: "number",
+  })
+  public readonly statusCode: number;
+
+  @ApiProperty({
+    description: "Error Message",
+    example: ["Error Message"],
+    type: "array",
+  })
+  public readonly error: string[];
+}
diff --git a/src/auth/exception/ForbiddenError.ts b/src/error/forbidden-error.ts
similarity index 66%
rename from src/auth/exception/ForbiddenError.ts
rename to src/error/forbidden-error.ts
index 9b8ee08..0b452ab 100644
--- a/src/auth/exception/ForbiddenError.ts
+++ b/src/error/forbidden-error.ts
@@ -3,15 +3,15 @@ import { ApiProperty } from "@nestjs/swagger";
 export class ForbiddenError {
   @ApiProperty({
     description: "HTTP Code",
-    example: "403",
+    example: 403,
     type: "number",
   })
   public readonly statusCode: number;
 
   @ApiProperty({
-    description: "Error message",
-    example: "Forbidden",
+    description: "Error Message",
+    example: "Error Message",
     type: "string",
   })
-  public readonly message: string;
+  public readonly error: string;
 }
diff --git a/src/auth/exception/UnauthorizedError.ts b/src/error/unauthorized-error.ts
similarity index 74%
rename from src/auth/exception/UnauthorizedError.ts
rename to src/error/unauthorized-error.ts
index 36ac4c0..578d856 100644
--- a/src/auth/exception/UnauthorizedError.ts
+++ b/src/error/unauthorized-error.ts
@@ -3,15 +3,15 @@ import { ApiProperty } from "@nestjs/swagger";
 export class UnauthorizedError {
   @ApiProperty({
     description: "HTTP Code",
-    example: "401",
+    example: 401,
     type: "number",
   })
   public readonly statusCode: number;
 
   @ApiProperty({
-    description: "Error message",
+    description: "Error Message",
     example: "Unauthorized",
     type: "string",
   })
-  public readonly message: string;
+  public readonly error: string;
 }
diff --git a/src/user/exceptions/create-user-badrequest-error.exception.ts b/src/user/exceptions/create-user-badrequest-error.exception.ts
deleted file mode 100644
index 0880212..0000000
--- a/src/user/exceptions/create-user-badrequest-error.exception.ts
+++ /dev/null
@@ -1,55 +0,0 @@
-import { ApiProperty } from "@nestjs/swagger";
-
-export class CreateUserBadRequestError {
-  @ApiProperty({
-    description: "HTTP 回應代碼",
-    example: "400",
-    type: "number",
-  })
-  public readonly statusCode: number;
-
-  @ApiProperty({
-    description: "錯誤訊息",
-    example: [
-      "email 為必填欄位。",
-      "email 必須是信箱格式。",
-      "name 為必填欄位。",
-      "account 為必填欄位。",
-      "password 為必填欄位。",
-      "password 必須長度大於等於8個字。",
-    ],
-    items: {
-      properties: {
-        account: {
-          description: "account 為必填欄位。  \n",
-          type: "string",
-        },
-        email: {
-          // eslint-disable-next-line no-useless-concat
-          description: "email 為必填欄位。  \n" + "email 必須是信箱格式。  \n",
-          type: "string",
-        },
-        name: {
-          description: "name 為必填欄位。  \n",
-          type: "string",
-        },
-        password: {
-          // eslint-disable-next-line no-useless-concat
-          description:
-            "password 為必填欄位。  \n" +
-            "password 必須長度大於等於8個字。  \n",
-          type: "string",
-        },
-      },
-    },
-    type: "array",
-  })
-  public readonly message: string[];
-
-  @ApiProperty({
-    description: "錯誤狀態碼敘述",
-    example: "Bad Request",
-    type: "string",
-  })
-  public readonly error: string;
-}
diff --git a/src/user/exceptions/create-user-conflict-error.exception.ts b/src/user/exceptions/create-user-conflict-error.exception.ts
deleted file mode 100644
index 4302ab4..0000000
--- a/src/user/exceptions/create-user-conflict-error.exception.ts
+++ /dev/null
@@ -1,36 +0,0 @@
-import { ApiProperty } from "@nestjs/swagger";
-
-export class CreateUserConflictError {
-  @ApiProperty({
-    description: "HTTP 回應代碼",
-    example: "409",
-    type: "number",
-  })
-  public readonly statusCode: number;
-
-  @ApiProperty({
-    description: "錯誤訊息",
-    example: ["email 已被註冊。", "account 已被註冊。"],
-    items: {
-      properties: {
-        account: {
-          description: "account 已被註冊。 \n",
-          type: "string",
-        },
-        email: {
-          description: "email 已被註冊。  \n",
-          type: "string",
-        },
-      },
-    },
-    type: "array",
-  })
-  public readonly message: string[];
-
-  @ApiProperty({
-    description: "錯誤狀態碼敘述",
-    example: "Conflict",
-    type: "string",
-  })
-  public readonly error: string;
-}
diff --git a/src/user/responses/create-user-response.ts b/src/user/responses/create-user-response.ts
index 3c8ec35..dbf1516 100644
--- a/src/user/responses/create-user-response.ts
+++ b/src/user/responses/create-user-response.ts
@@ -3,7 +3,7 @@ import { ApiProperty } from "@nestjs/swagger";
 export class CreateUserResponse {
   @ApiProperty({
     description: "HTTP 回應代碼",
-    example: "201",
+    example: 201,
     type: "number",
   })
   public readonly statusCode: number;
@@ -11,7 +11,7 @@ export class CreateUserResponse {
   @ApiProperty({
     description: "創建成功回應",
     example: "創建成功",
-    type: "number",
+    type: "string",
   })
   public readonly message: string;
 }