diff --git a/simple_sns/src/main/java/com/example/sns/controller/UserController.java b/simple_sns/src/main/java/com/example/sns/controller/UserController.java
index 72b32fc8..db976256 100644
--- a/simple_sns/src/main/java/com/example/sns/controller/UserController.java
+++ b/simple_sns/src/main/java/com/example/sns/controller/UserController.java
@@ -1,8 +1,13 @@
 package com.example.sns.controller;
 
+import com.example.sns.controller.request.UserJoinRequest;
+import com.example.sns.controller.response.Response;
+import com.example.sns.controller.response.UserJoinResponse;
+import com.example.sns.model.User;
 import com.example.sns.service.UserService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -14,7 +19,9 @@ public class UserController {
     private final UserService userService;
 
     @PostMapping("/join")
-    public void join() {
-        userService.join(username, password);
+    public Response<UserJoinResponse> join(@RequestBody UserJoinRequest request) {
+        User user = userService.join(request.getUsername(), request.getPassword());
+
+        return Response.success(UserJoinResponse.fromUser(user));
     }
 }
diff --git a/simple_sns/src/main/java/com/example/sns/controller/response/Response.java b/simple_sns/src/main/java/com/example/sns/controller/response/Response.java
new file mode 100644
index 00000000..2255496a
--- /dev/null
+++ b/simple_sns/src/main/java/com/example/sns/controller/response/Response.java
@@ -0,0 +1,20 @@
+package com.example.sns.controller.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class Response<T> {
+
+    private String resultCode;
+    private T result;
+
+    public static <T> Response<T> success(T result) {
+        return new Response<>("SUCCESS", result);
+    }
+
+    public static Response<Void> error(String errorCode) {
+        return new Response<>(errorCode, null);
+    }
+}
diff --git a/simple_sns/src/main/java/com/example/sns/controller/response/UserJoinResponse.java b/simple_sns/src/main/java/com/example/sns/controller/response/UserJoinResponse.java
new file mode 100644
index 00000000..a1c57c1e
--- /dev/null
+++ b/simple_sns/src/main/java/com/example/sns/controller/response/UserJoinResponse.java
@@ -0,0 +1,21 @@
+package com.example.sns.controller.response;
+
+import com.example.sns.model.User;
+import com.example.sns.model.UserRole;
+import lombok.AllArgsConstructor;
+
+@AllArgsConstructor
+public class UserJoinResponse {
+
+    private Integer id;
+    private String username;
+    private UserRole role;
+
+    public static UserJoinResponse fromUser(User user) {
+        return new UserJoinResponse(
+                user.getId(),
+                user.getUsername(),
+                user.getUserRole()
+        );
+    }
+}
diff --git a/simple_sns/src/main/java/com/example/sns/exception/ErrorCode.java b/simple_sns/src/main/java/com/example/sns/exception/ErrorCode.java
new file mode 100644
index 00000000..ddb28a4d
--- /dev/null
+++ b/simple_sns/src/main/java/com/example/sns/exception/ErrorCode.java
@@ -0,0 +1,17 @@
+package com.example.sns.exception;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import org.springframework.http.HttpStatus;
+
+@Getter
+@AllArgsConstructor
+public enum ErrorCode {
+
+    DUPLICATED_USER_NAME(HttpStatus.CONFLICT, "Username is duplicated.")
+
+    ;
+
+    private HttpStatus status;
+    private String message;
+}
diff --git a/simple_sns/src/main/java/com/example/sns/exception/GlobalControllerAdvice.java b/simple_sns/src/main/java/com/example/sns/exception/GlobalControllerAdvice.java
new file mode 100644
index 00000000..53b18148
--- /dev/null
+++ b/simple_sns/src/main/java/com/example/sns/exception/GlobalControllerAdvice.java
@@ -0,0 +1,19 @@
+package com.example.sns.exception;
+
+import com.example.sns.controller.response.Response;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@Slf4j
+@RestControllerAdvice
+public class GlobalControllerAdvice {
+
+    @ExceptionHandler(SnsApplicationException.class)
+    public ResponseEntity<?> applicationHandler(SnsApplicationException e) {
+        log.info("Error occurs {}", e.toString());
+        return ResponseEntity.status(e.getErrorCode().getStatus())
+                .body(Response.error(e.getErrorCode().name()));
+    }
+}
diff --git a/simple_sns/src/main/java/com/example/sns/exception/SnsApplicationException.java b/simple_sns/src/main/java/com/example/sns/exception/SnsApplicationException.java
index 1b625d22..50a28d2c 100644
--- a/simple_sns/src/main/java/com/example/sns/exception/SnsApplicationException.java
+++ b/simple_sns/src/main/java/com/example/sns/exception/SnsApplicationException.java
@@ -1,4 +1,23 @@
 package com.example.sns.exception;
 
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
 public class SnsApplicationException extends RuntimeException {
+
+    private ErrorCode errorCode;
+    private String message;
+
+    @Override
+    public String getMessage() {
+        if (message==null) {
+            return errorCode.getMessage();
+        }
+
+        return String.format("$s, $s", errorCode.getMessage(), message);
+    }
 }
diff --git a/simple_sns/src/main/java/com/example/sns/model/User.java b/simple_sns/src/main/java/com/example/sns/model/User.java
index d148e703..384b5bf5 100644
--- a/simple_sns/src/main/java/com/example/sns/model/User.java
+++ b/simple_sns/src/main/java/com/example/sns/model/User.java
@@ -1,7 +1,32 @@
 package com.example.sns.model;
 
+import com.example.sns.model.entity.UserEntity;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.sql.Timestamp;
+
+@Getter
+@AllArgsConstructor
 public class User {
 
+    private Integer id;
     private String username;
     private String password;
+    private UserRole userRole;
+    private Timestamp registeredAt;
+    private Timestamp updatedAt;
+    private Timestamp deletedAt;
+
+    public static User fromEntity(UserEntity entity) {
+        return new User(
+                entity.getId(),
+                entity.getUsername(),
+                entity.getPassword(),
+                entity.getRole(),
+                entity.getRegisteredAt(),
+                entity.getUpdatedAt(),
+                entity.getDeletedAt()
+        );
+    }
 }
diff --git a/simple_sns/src/main/java/com/example/sns/model/UserRole.java b/simple_sns/src/main/java/com/example/sns/model/UserRole.java
new file mode 100644
index 00000000..b7c27122
--- /dev/null
+++ b/simple_sns/src/main/java/com/example/sns/model/UserRole.java
@@ -0,0 +1,5 @@
+package com.example.sns.model;
+
+public enum UserRole {
+    ADMIN, USER
+}
diff --git a/simple_sns/src/main/java/com/example/sns/model/entity/UserEntity.java b/simple_sns/src/main/java/com/example/sns/model/entity/UserEntity.java
index 29a07e6e..a1235d7f 100644
--- a/simple_sns/src/main/java/com/example/sns/model/entity/UserEntity.java
+++ b/simple_sns/src/main/java/com/example/sns/model/entity/UserEntity.java
@@ -1,13 +1,20 @@
 package com.example.sns.model.entity;
 
+import com.example.sns.model.UserRole;
 import lombok.Getter;
 import lombok.Setter;
+import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.Where;
 
 import javax.persistence.*;
+import java.sql.Timestamp;
+import java.time.Instant;
 
 @Entity
-@Table
+@Table(name = "\"user\"")
 @Getter @Setter
+@SQLDelete(sql = "UPDATE \"user\" SET deleted_at = NOW() where id=?")
+@Where(clause = "deleted_at IS NULL")
 public class UserEntity {
 
     @Id
@@ -16,4 +23,28 @@ public class UserEntity {
 
     private String username;
     private String password;
+
+    @Enumerated(EnumType.STRING)
+    private UserRole role;
+
+    private Timestamp registeredAt;
+    private Timestamp updatedAt;
+    private Timestamp deletedAt;
+
+    @PrePersist
+    void registeredAt() {
+        this.registeredAt = Timestamp.from(Instant.now());
+    }
+
+    @PreUpdate
+    void updatedAt() {
+        this.updatedAt = Timestamp.from(Instant.now());
+    }
+
+    public static UserEntity of(String username, String password) {
+        UserEntity userEntity = new UserEntity();
+        userEntity.setUsername(username);
+        userEntity.setPassword(password);
+        return userEntity;
+    }
 }
diff --git a/simple_sns/src/main/java/com/example/sns/service/UserService.java b/simple_sns/src/main/java/com/example/sns/service/UserService.java
index 60e41ee0..41aea845 100644
--- a/simple_sns/src/main/java/com/example/sns/service/UserService.java
+++ b/simple_sns/src/main/java/com/example/sns/service/UserService.java
@@ -1,5 +1,6 @@
 package com.example.sns.service;
 
+import com.example.sns.exception.ErrorCode;
 import com.example.sns.exception.SnsApplicationException;
 import com.example.sns.model.User;
 import com.example.sns.model.entity.UserEntity;
@@ -18,12 +19,14 @@ public class UserService {
     public User join(String username, String password){
 
         // username 확인
-        Optional<UserEntity> userEntity = userEntityRepository.findByUsername(username);
+        userEntityRepository.findByUsername(username).ifPresent(it -> {
+            throw new SnsApplicationException(ErrorCode.DUPLICATED_USER_NAME, String.format("$s is duplicated", username));
+        });
 
         // 회원가입 진행
-        userEntityRepository.save(new UserEntity());
+        UserEntity userEntity = userEntityRepository.save(UserEntity.of(username, password));
 
-        return new User();
+        return User.fromEntity(userEntity);
     }
 
     public String login(String username, String password) {
diff --git a/simple_sns/src/test/java/com/example/sns/controller/UserControllerTest.java b/simple_sns/src/test/java/com/example/sns/controller/UserControllerTest.java
index 8994ead7..30fe8d00 100644
--- a/simple_sns/src/test/java/com/example/sns/controller/UserControllerTest.java
+++ b/simple_sns/src/test/java/com/example/sns/controller/UserControllerTest.java
@@ -2,6 +2,7 @@ package com.example.sns.controller;
 
 import com.example.sns.controller.request.UserJoinRequest;
 import com.example.sns.controller.request.UserLoginRequest;
+import com.example.sns.exception.ErrorCode;
 import com.example.sns.exception.SnsApplicationException;
 import com.example.sns.model.User;
 import com.example.sns.service.UserService;
@@ -52,7 +53,7 @@ public class UserControllerTest {
         String username = "username";
         String password = "password";
 
-        when(userService.join(username, password)).thenThrow(new SnsApplicationException());
+        when(userService.join(username, password)).thenThrow(new SnsApplicationException(ErrorCode.DUPLICATED_USER_NAME, ""));
 
         mockMvc.perform(post("/api/v1/users/join")
                         .contentType(MediaType.APPLICATION_JSON)