diff --git a/packages/server/admin/README.md b/packages/server/admin/README.md
index 0b4cd6b..b17f1a8 100644
--- a/packages/server/admin/README.md
+++ b/packages/server/admin/README.md
@@ -1 +1,41 @@
 # admin
+
+Create AdminAuth, AdminController
+
+## Installation
+
+```bash
+$ npm i @awesome-dev/server-admin
+```
+
+## Dependencies
+
+@awesome-dev/server-env
+@awesome-dev/utils
+@awesome-dev/server-aws-s3
+jsonwebtoken
+
+## Usage
+
+```bash
+@AdminController(CustomEntity)
+export class AdminCustomController extends BaseAdminController<CustomEntity> {
+  constructor(readonly service: EntityService) {
+    super(service);
+  }
+}
+```
+env
+```bash
+ADMIN_USER_ID="userId"
+ADMIN_USER_PASSWORD="userPassword"
+ADMIN_JWT_SECRET_KEY='JWTSecretKey'
+```
+
+## Support
+
+Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please [read more here](https://docs.nestjs.com/support).
+
+## License
+
+Nest is [MIT licensed](LICENSE).
diff --git a/packages/server/admin/src/config.ts b/packages/server/admin/src/config.ts
index 7d3bcc4..f65d841 100644
--- a/packages/server/admin/src/config.ts
+++ b/packages/server/admin/src/config.ts
@@ -6,6 +6,9 @@ export interface AdminConfigOption {
   jwtSecretKey: string;
 }
 
+/**
+ * AdminConfigOption의 key를 이용해 값을 가져옵니다.
+ */
 @Injectable()
 export class AdminConfig {
   public constructor(private readonly option: AdminConfigOption) {}
diff --git a/packages/server/admin/src/controllers/admin-auth.controller.ts b/packages/server/admin/src/controllers/admin-auth.controller.ts
index 4e8ab36..8fddff8 100644
--- a/packages/server/admin/src/controllers/admin-auth.controller.ts
+++ b/packages/server/admin/src/controllers/admin-auth.controller.ts
@@ -3,6 +3,10 @@ import { Request } from 'express';
 
 import { AdminAuthService } from '../providers';
 
+/**
+ * path는 '/admin/auth'로 설정된다.
+ * 어드민 로그인 API를 제공한다.
+ */
 @Controller('/admin/auth')
 export class AdminAuthController {
   constructor(private readonly authService: AdminAuthService) {}
diff --git a/packages/server/admin/src/controllers/admin-common.controller.ts b/packages/server/admin/src/controllers/admin-common.controller.ts
index 6d90010..47bbc15 100644
--- a/packages/server/admin/src/controllers/admin-common.controller.ts
+++ b/packages/server/admin/src/controllers/admin-common.controller.ts
@@ -4,6 +4,10 @@ import { FilesInterceptor } from '@nestjs/platform-express';
 
 import { AdminGuard } from '../providers';
 
+/**
+ * path는 '/admin/common'으로 설정된다.
+ * 파일 업로드 API를 제공한다.
+ */
 @UseGuards(AdminGuard)
 @Controller('/admin/common')
 export class AdminCommonController {
diff --git a/packages/server/admin/src/controllers/base-admin.controller.ts b/packages/server/admin/src/controllers/base-admin.controller.ts
index 4122a1e..1751c07 100644
--- a/packages/server/admin/src/controllers/base-admin.controller.ts
+++ b/packages/server/admin/src/controllers/base-admin.controller.ts
@@ -8,6 +8,11 @@ import {
 import { PartialDeep } from '@awesome-dev/typings';
 import { Body, Delete, Get, Param, ParseIntPipe, Patch, Post, Query } from '@nestjs/common';
 
+/**
+ * path는 '/admin/${toKebabCase(entityName)}s'으로 설정된다.
+ * AdminController 데코레이터를 사용한 컨트롤러는 이 클래스를 상속받아야 한다.
+ * AdminController 데코레이터를 사용한 컨트롤러는 CRUD와 entity의 개수를 가져오는 API를 자동으로 생성한다.
+ */
 export abstract class BaseAdminController<Entity extends BaseIdEntity> {
   constructor(protected readonly service: BaseService<Entity>) {}
 
diff --git a/packages/server/admin/src/module.ts b/packages/server/admin/src/module.ts
index dccd76d..4dcbae9 100644
--- a/packages/server/admin/src/module.ts
+++ b/packages/server/admin/src/module.ts
@@ -9,12 +9,18 @@ import { AdminConfig } from './config';
 @Module({})
 export class AwesomeAdminModule {
   static forRoot(): DynamicModule {
+    /**
+     * process.env의 환경변수를 가져옵니다.
+     */
     const config = loadEnv([
       'ADMIN_USER_ID',
       'ADMIN_USER_PASSWORD',
       'ADMIN_JWT_SECRET_KEY',
     ] as const);
 
+    /**
+     * AdminConfig 인스턴스를 생성합니다.
+     */
     const ConfigProvider: Provider = {
       provide: AdminConfig,
       useFactory: () =>
diff --git a/packages/server/admin/src/providers/admin-auth.service.ts b/packages/server/admin/src/providers/admin-auth.service.ts
index fb8b7fd..b82a7d6 100644
--- a/packages/server/admin/src/providers/admin-auth.service.ts
+++ b/packages/server/admin/src/providers/admin-auth.service.ts
@@ -3,10 +3,17 @@ import * as jwt from 'jsonwebtoken';
 
 import { AdminConfig } from '../config';
 
+/**
+ * 어드민 로그인 서비스
+ */
 @Injectable()
 export class AdminAuthService {
   constructor(private readonly config: AdminConfig) {}
 
+  /**
+   * 로그인을 수행합니다.
+   * env에 설정된 userId와 userPassword를 비교하여 일치하면 토큰을 발급합니다.
+   */
   signin(code: string, password: string) {
     if (
       code !== this.config.getOption('userId') ||
diff --git a/packages/server/admin/src/providers/admin.guard.ts b/packages/server/admin/src/providers/admin.guard.ts
index 1b5950a..47e9bb2 100644
--- a/packages/server/admin/src/providers/admin.guard.ts
+++ b/packages/server/admin/src/providers/admin.guard.ts
@@ -4,6 +4,9 @@ import { Observable } from 'rxjs';
 
 import { AdminAuthService } from './admin-auth.service';
 
+/**
+ * 어드민 권한이 있는지 확인합니다.
+ */
 @Injectable()
 export class AdminGuard implements CanActivate {
   constructor(private readonly authService: AdminAuthService) {}