diff --git a/service/app/user.go b/service/app/user.go
index e6bb28b..dc80e03 100644
--- a/service/app/user.go
+++ b/service/app/user.go
@@ -6,9 +6,11 @@ import (
 	"git.echol.cn/loser/lckt/model/app/vo"
 	"git.echol.cn/loser/lckt/model/user"
 	"git.echol.cn/loser/lckt/model/user/request"
+	utils2 "git.echol.cn/loser/lckt/utils"
 	"github.com/ArtisanCloud/PowerSocialite/v3/src/providers"
 	"go.uber.org/zap"
 	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
 )
 
 type AppUserService struct{}
@@ -110,3 +112,46 @@ func (u *AppUserService) GetUserInfo(id uint) (info vo.UserInfo, err error) {
 	}
 	return
 }
+
+func (u *AppUserService) Register(p request.RegisterReq) (userInfo user.User, err error) {
+	err = global.GVA_DB.Transaction(func(tx *gorm.DB) error {
+		// 1. 判断用户是否存在
+		var count int64
+		if err = tx.Model(&userInfo).Where("phone = ?", p.Phone).Count(&count).Error; err != nil {
+			global.GVA_LOG.Error("查询用户失败", zap.Error(err))
+			return err
+		}
+		if count > 0 {
+			global.GVA_LOG.Error("用户已存在")
+			return fmt.Errorf("用户已存在")
+		}
+
+		// 2. 如果用户不存在，则创建用户
+		password, _ := bcrypt.GenerateFromPassword([]byte(p.Password), bcrypt.DefaultCost)
+		userInfo = user.User{
+			Phone:     p.Phone,
+			Password:  string(password),
+			NickName:  p.NickName,
+			UserLabel: 1,
+			Status:    1,
+			UserType:  p.UserType,
+			Avatar:    "https://ui-avatars.com/api/?name=" + p.NickName + "&background=0081ff&color=ffffff&rounded=true",
+		}
+
+		// 保存用户
+		if err = tx.Save(&userInfo).Error; err != nil {
+			global.GVA_LOG.Error("创建用户失败", zap.Error(err))
+			return err
+		}
+
+		// 生成邀请码
+		code := utils2.GenerateInviteCode(userInfo.ID)
+		userInfo.InviteCode = &code
+		if err = tx.Model(&userInfo).Where("id = ?", userInfo.ID).Update("invite_code", code).Error; err != nil {
+			global.GVA_LOG.Error("更新邀请码失败", zap.Error(err))
+			return err
+		}
+		return nil
+	})
+	return
+}