diff --git a/src/main/java/com/interplug/qcast/biz/login/LoginController.java b/src/main/java/com/interplug/qcast/biz/login/LoginController.java
index 916f0a3c..ad662f06 100644
--- a/src/main/java/com/interplug/qcast/biz/login/LoginController.java
+++ b/src/main/java/com/interplug/qcast/biz/login/LoginController.java
@@ -47,6 +47,13 @@ public class LoginController {
   String autoLoginAesKey;
 
 
+  /**
+   * Q.CAST III에 로그인하여 사용자 정보를 획득한다.
+   * 
+   * @param loginUser LoginUser
+   * @return UserLoginResponse
+   * @throws Exception
+   */
   @Operation(description = "Q.CAST III에 로그인하여 사용자 정보를 획득한다.")
   @PostMapping("/v1.0/login")
   @ResponseStatus(HttpStatus.CREATED)
@@ -60,6 +67,13 @@ public class LoginController {
     return loginService.getUser(loginUser);
   }
 
+  /**
+   * 가입 신청 정보를 등록한다.
+   * 
+   * @param joinUser JoinUser
+   * @return DefaultResponse
+   * @throws Exception
+   */
   @Operation(description = "가입 신청 정보를 등록한다.")
   @PostMapping("/v1.0/user/join")
   @ResponseStatus(HttpStatus.CREATED)
@@ -67,18 +81,39 @@ public class LoginController {
     return loginService.joinUser(joinUser);
   }
 
+  /**
+   * 비밀번호를 초기화한다.
+   * 
+   * @param userPassword UserPassword
+   * @return DefaultResponse
+   * @throws Exception
+   */
   @Operation(description = "비밀번호를 초기화한다.")
   @PatchMapping("/v1.0/user/init-password")
   public DefaultResponse initPassword(@RequestBody UserPassword userPassword) throws Exception {
     return loginService.initPassword(userPassword);
   }
 
+  /**
+   * 비밀번호를 변경한다.
+   * 
+   * @param userPassword UserPassword
+   * @return DefaultResponse
+   * @throws Exception
+   */
   @Operation(description = "비밀번호를 변경한다.")
   @PatchMapping("/v1.0/user/change-password")
   public DefaultResponse changePassword(@RequestBody UserPassword userPassword) throws Exception {
     return loginService.changePassword(userPassword);
   }
 
+  /**
+   * 자동 로그인에 사용하는 아이디를 암호화한다.
+   * 
+   * @param loginUser LoginUser
+   * @return String
+   * @throws Exception
+   */
   @Operation(description = "자동 로그인에 사용하는 아이디를 암호화한다.")
   @PostMapping("/v1.0/user/login/autoLoginEncryptData")
   public String getAutoLoginEncryptData(@RequestBody LoginUser loginUser) throws Exception {
@@ -116,6 +151,13 @@ public class LoginController {
     return loginEncryptId;
   }
 
+  /**
+   * 자동 로그인에 사용하는 아이디를 복호화한다.
+   * 
+   * @param loginUser LoginUser
+   * @return String
+   * @throws Exception
+   */
   @Operation(description = "자동 로그인에 사용하는 아이디를 복호화한다.")
   @PostMapping("/v1.0/user/login/autoLoginDecryptData")
   public String getAutoLoginDecryptData(@RequestBody LoginUser loginUser) throws Exception {
diff --git a/src/main/java/com/interplug/qcast/biz/login/LoginService.java b/src/main/java/com/interplug/qcast/biz/login/LoginService.java
index 44cb854f..4f4bed68 100644
--- a/src/main/java/com/interplug/qcast/biz/login/LoginService.java
+++ b/src/main/java/com/interplug/qcast/biz/login/LoginService.java
@@ -33,7 +33,13 @@ public class LoginService {
   @Autowired
   Messages message;
 
-  // 로그인 처리
+  /**
+   * 로그인 처리
+   * 
+   * @param loginUser LoginUser
+   * @return UserLoginResponse
+   * @throws Exception
+   */
   public UserLoginResponse getLogin(LoginUser loginUser) throws Exception {
     if (loginUser.getLoginId() == null || "".equals(loginUser.getLoginId()))
       throw new QcastException(ErrorCode.INVALID_INPUT_VALUE,
@@ -64,7 +70,13 @@ public class LoginService {
     return loginMapper.getUser(loginUser);
   }
 
-  // 가입 신청 등록
+  /**
+   * 가입 신청 등록
+   * 
+   * @param joinUser JoinUser
+   * @return DefaultResponse
+   * @throws Exception
+   */
   public DefaultResponse joinUser(JoinUser joinUser) throws Exception {
     if (joinUser.getStoreQcastNm() == null || "".equals(joinUser.getStoreQcastNm()))
       throw new QcastException(ErrorCode.INVALID_INPUT_VALUE,
@@ -131,7 +143,13 @@ public class LoginService {
     return defaultResponse;
   }
 
-  // 비밀번호 초기화
+  /**
+   * 비밀번호 초기화
+   * 
+   * @param userPassword UserPassword
+   * @return DefaultResponse
+   * @throws Exception
+   */
   public DefaultResponse initPassword(UserPassword userPassword) throws Exception {
     if (userPassword.getLoginId() == null || "".equals(userPassword.getLoginId()))
       throw new QcastException(ErrorCode.INVALID_INPUT_VALUE,
@@ -157,7 +175,13 @@ public class LoginService {
     return defaultResponse;
   }
 
-  // 비밀번호 변경
+  /**
+   * 비밀번호 변경
+   * 
+   * @param userPassword UserPassword
+   * @return DefaultResponse
+   * @throws Exception
+   */
   public DefaultResponse changePassword(UserPassword userPassword) throws Exception {
     if (userPassword.getLoginId() == null || "".equals(userPassword.getLoginId()))
       throw new QcastException(ErrorCode.INVALID_INPUT_VALUE,