diff --git a/apis/auth/auth.api b/apis/auth/auth.api
index c257e04..b33ec00 100644
--- a/apis/auth/auth.api
+++ b/apis/auth/auth.api
@@ -149,11 +149,12 @@ type (
 		State string `form:"state"`
 	}
 	DeviceLoginRequest {
-		Identifier string `json:"identifier" validate:"required"`
-		IP         string `header:"X-Original-Forwarded-For"`
-		UserAgent  string `json:"user_agent" validate:"required"`
-		CfToken    string `json:"cf_token,optional"`
-		ShortCode  string `json:"short_code,optional"`
+		Identifier  string `json:"identifier" validate:"required"`
+		IP          string `header:"X-Original-Forwarded-For"`
+		UserAgent   string `json:"user_agent" validate:"required"`
+		CfToken     string `json:"cf_token,optional"`
+		ShortCode   string `json:"short_code,optional"`
+		BasePayload string `json:"base_payload,optional"`
 	}
 	GenerateCaptchaResponse {
 		Id         string `json:"id"`
diff --git a/initialize/migrate/database/02146_device_base_payload.down.sql b/initialize/migrate/database/02146_device_base_payload.down.sql
new file mode 100644
index 0000000..4cb191a
--- /dev/null
+++ b/initialize/migrate/database/02146_device_base_payload.down.sql
@@ -0,0 +1 @@
+ALTER TABLE `user_device` DROP COLUMN `base_payload`;
diff --git a/initialize/migrate/database/02146_device_base_payload.up.sql b/initialize/migrate/database/02146_device_base_payload.up.sql
new file mode 100644
index 0000000..fb76103
--- /dev/null
+++ b/initialize/migrate/database/02146_device_base_payload.up.sql
@@ -0,0 +1 @@
+ALTER TABLE `user_device` ADD COLUMN `base_payload` TEXT DEFAULT NULL COMMENT 'Base Payload' AFTER `short_code`;
diff --git a/internal/logic/auth/deviceLoginLogic.go b/internal/logic/auth/deviceLoginLogic.go
index e0a0d0e..81594cb 100644
--- a/internal/logic/auth/deviceLoginLogic.go
+++ b/internal/logic/auth/deviceLoginLogic.go
@@ -96,6 +96,17 @@ func (l *DeviceLoginLogic) DeviceLogin(req *types.DeviceLoginRequest) (resp *typ
 			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "query user failed: %v", err.Error())
 		}
 
+		// Update base_payload if provided
+		if req.BasePayload != "" && req.BasePayload != deviceInfo.BasePayload {
+			deviceInfo.BasePayload = req.BasePayload
+			if updateErr := l.svcCtx.UserModel.UpdateDevice(l.ctx, deviceInfo); updateErr != nil {
+				l.Errorw("update device base_payload failed",
+					logger.Field("device_id", deviceInfo.Id),
+					logger.Field("error", updateErr.Error()),
+				)
+			}
+		}
+
 		// 注销后 device auth_method 被删除，重新登录时需要补回
 		hasDeviceAuth := false
 		for _, am := range userInfo.AuthMethods {
@@ -220,13 +231,14 @@ func (l *DeviceLoginLogic) registerUserAndDevice(req *types.DeviceLoginRequest)
 
 		// Insert device record
 		deviceInfo := &user.Device{
-			Ip:         req.IP,
-			UserId:     userInfo.Id,
-			UserAgent:  req.UserAgent,
-			Identifier: req.Identifier,
-			ShortCode:  req.ShortCode,
-			Enabled:    true,
-			Online:     false,
+			Ip:          req.IP,
+			UserId:      userInfo.Id,
+			UserAgent:   req.UserAgent,
+			Identifier:  req.Identifier,
+			ShortCode:   req.ShortCode,
+			BasePayload: req.BasePayload,
+			Enabled:     true,
+			Online:      false,
 		}
 		if err := db.Create(deviceInfo).Error; err != nil {
 			l.Errorw("failed to insert device",
diff --git a/internal/model/user/user.go b/internal/model/user/user.go
index 425af75..c9ff2bd 100644
--- a/internal/model/user/user.go
+++ b/internal/model/user/user.go
@@ -130,16 +130,17 @@ func (*AuthMethods) TableName() string {
 }
 
 type Device struct {
-	Id         int64     `gorm:"primaryKey"`
-	Ip         string    `gorm:"type:varchar(255);not null;comment:Device IP"`
-	UserId     int64     `gorm:"index:idx_user_id;not null;comment:User ID"`
-	UserAgent  string    `gorm:"default:null;comment:UserAgent."`
-	Identifier string    `gorm:"type:varchar(255);unique;index:idx_identifier;default:'';comment:Device Identifier"`
-	ShortCode  string    `gorm:"type:varchar(255);default:'';comment:Short Code"`
-	Online     bool      `gorm:"default:false;not null;comment:Online"`
-	Enabled    bool      `gorm:"default:true;not null;comment:Enabled"`
-	CreatedAt  time.Time `gorm:"<-:create;comment:Creation Time"`
-	UpdatedAt  time.Time `gorm:"comment:Update Time"`
+	Id          int64     `gorm:"primaryKey"`
+	Ip          string    `gorm:"type:varchar(255);not null;comment:Device IP"`
+	UserId      int64     `gorm:"index:idx_user_id;not null;comment:User ID"`
+	UserAgent   string    `gorm:"default:null;comment:UserAgent."`
+	Identifier  string    `gorm:"type:varchar(255);unique;index:idx_identifier;default:'';comment:Device Identifier"`
+	ShortCode   string    `gorm:"type:varchar(255);default:'';comment:Short Code"`
+	BasePayload string    `gorm:"type:text;default:null;comment:Base Payload"`
+	Online      bool      `gorm:"default:false;not null;comment:Online"`
+	Enabled     bool      `gorm:"default:true;not null;comment:Enabled"`
+	CreatedAt   time.Time `gorm:"<-:create;comment:Creation Time"`
+	UpdatedAt   time.Time `gorm:"comment:Update Time"`
 }
 
 func (*Device) TableName() string {
diff --git a/internal/types/types.go b/internal/types/types.go
index 65cd75b..6ea8472 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -637,11 +637,12 @@ type DeviceAuthticateConfig struct {
 }
 
 type DeviceLoginRequest struct {
-	Identifier string `json:"identifier" validate:"required"`
-	IP         string `header:"X-Original-Forwarded-For"`
-	UserAgent  string `json:"user_agent" validate:"required"`
-	CfToken    string `json:"cf_token,optional"`
-	ShortCode  string `json:"short_code,optional"`
+	Identifier  string `json:"identifier" validate:"required"`
+	IP          string `header:"X-Original-Forwarded-For"`
+	UserAgent   string `json:"user_agent" validate:"required"`
+	CfToken     string `json:"cf_token,optional"`
+	ShortCode   string `json:"short_code,optional"`
+	BasePayload string `json:"base_payload,optional"`
 }
 
 type DissolveFamilyRequest struct {