diff --git a/apis/types.api b/apis/types.api
index e53eebb..53e4b3f 100644
--- a/apis/types.api
+++ b/apis/types.api
@@ -565,6 +565,7 @@ type (
 	FamilyMemberItem {
 		UserId     int64  `json:"user_id"`
 		Identifier string `json:"identifier"`
+		DeviceNo   string `json:"device_no"`
 		Role       uint8  `json:"role"`
 		RoleName   string `json:"role_name"`
 		Status     uint8  `json:"status"`
diff --git a/internal/logic/admin/user/getFamilyDetailLogic.go b/internal/logic/admin/user/getFamilyDetailLogic.go
index 0c08bd7..b58e112 100644
--- a/internal/logic/admin/user/getFamilyDetailLogic.go
+++ b/internal/logic/admin/user/getFamilyDetailLogic.go
@@ -8,6 +8,7 @@ import (
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/internal/types"
 	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/tool"
 	"github.com/perfect-panel/server/pkg/xerr"
 	"github.com/pkg/errors"
 	"gorm.io/gorm"
@@ -62,6 +63,15 @@ func (l *GetFamilyDetailLogic) GetFamilyDetail(req *types.GetFamilyDetailRequest
 		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "query family member identifiers failed")
 	}
 
+	// 查出所有成员的设备，构建 userId → deviceNo 映射
+	deviceNoMap := make(map[int64]string)
+	devices, _, _ := l.svcCtx.UserModel.QueryDeviceListByUserIds(l.ctx, userIDs)
+	for _, d := range devices {
+		if _, exists := deviceNoMap[d.UserId]; !exists {
+			deviceNoMap[d.UserId] = tool.DeviceIdToHash(d.Id)
+		}
+	}
+
 	memberItems := make([]types.FamilyMemberItem, 0, len(members))
 	for _, member := range members {
 		identifier := identifierMap[member.UserId]
@@ -72,6 +82,7 @@ func (l *GetFamilyDetailLogic) GetFamilyDetail(req *types.GetFamilyDetailRequest
 		memberItem := types.FamilyMemberItem{
 			UserId:     member.UserId,
 			Identifier: identifier,
+			DeviceNo:   deviceNoMap[member.UserId],
 			Role:       member.Role,
 			RoleName:   mapFamilyRoleName(member.Role),
 			Status:     member.Status,
diff --git a/internal/types/types.go b/internal/types/types.go
index e7b0bb9..aa88d6e 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -682,6 +682,7 @@ type FamilyDetail struct {
 type FamilyMemberItem struct {
 	UserId     int64  `json:"user_id"`
 	Identifier string `json:"identifier"`
+	DeviceNo   string `json:"device_no"`
 	Role       uint8  `json:"role"`
 	RoleName   string `json:"role_name"`
 	Status     uint8  `json:"status"`