diff --git a/internal/db/models/log_model.go b/internal/db/models/log_model.go
index bb2c050e..d5545338 100644
--- a/internal/db/models/log_model.go
+++ b/internal/db/models/log_model.go
@@ -13,6 +13,7 @@ type Log struct {
 	Ip          string `field:"ip"`          // IP地址
 	Type        string `field:"type"`        // 类型：admin, user
 	Day         string `field:"day"`         // 日期
+	BillId      uint32 `field:"billId"`      // 账单ID
 }
 
 type LogOperator struct {
@@ -27,6 +28,7 @@ type LogOperator struct {
 	Ip          interface{} // IP地址
 	Type        interface{} // 类型：admin, user
 	Day         interface{} // 日期
+	BillId      interface{} // 账单ID
 }
 
 func NewLogOperator() *LogOperator {
diff --git a/internal/db/models/node_price_item_dao.go b/internal/db/models/node_price_item_dao.go
index 4013d604..4acaf24c 100644
--- a/internal/db/models/node_price_item_dao.go
+++ b/internal/db/models/node_price_item_dao.go
@@ -10,6 +10,8 @@ import (
 const (
 	NodePriceItemStateEnabled  = 1 // 已启用
 	NodePriceItemStateDisabled = 0 // 已禁用
+
+	NodePriceTypeTraffic = "traffic" // 价格类型之流量
 )
 
 type NodePriceItemDAO dbs.DAO
@@ -118,3 +120,15 @@ func (this *NodePriceItemDAO) FindAllEnabledAndOnRegionPrices(priceType string)
 		FindAll()
 	return
 }
+
+// 根据字节查找付费项目
+func (this *NodePriceItemDAO) SearchItemsWithBytes(items []*NodePriceItem, bytes int64) int64 {
+	bytes *= 8
+
+	for _, item := range items {
+		if bytes >= int64(item.BitsFrom) && (bytes < int64(item.BitsTo) || item.BitsTo == 0) {
+			return int64(item.Id)
+		}
+	}
+	return 0
+}
diff --git a/internal/db/models/node_region_dao.go b/internal/db/models/node_region_dao.go
index 20b7f02c..831f27fc 100644
--- a/internal/db/models/node_region_dao.go
+++ b/internal/db/models/node_region_dao.go
@@ -108,6 +108,18 @@ func (this *NodeRegionDAO) FindAllEnabledRegions() (result []*NodeRegion, err er
 	return
 }
 
+// 列出所有价格
+func (this *NodeRegionDAO) FindAllEnabledRegionPrices() (result []*NodeRegion, err error) {
+	_, err = this.Query().
+		State(NodeRegionStateEnabled).
+		Desc("order").
+		AscPk().
+		Result("id", "prices").
+		Slice(&result).
+		FindAll()
+	return
+}
+
 // 列出所有启用的区域
 func (this *NodeRegionDAO) FindAllEnabledAndOnRegions() (result []*NodeRegion, err error) {
 	_, err = this.Query().
diff --git a/internal/db/models/server_daily_stat_dao.go b/internal/db/models/server_daily_stat_dao.go
index 72026e34..2d2a16b9 100644
--- a/internal/db/models/server_daily_stat_dao.go
+++ b/internal/db/models/server_daily_stat_dao.go
@@ -55,3 +55,14 @@ func (this *ServerDailyStatDAO) SaveStats(stats []*pb.ServerDailyStat) error {
 	}
 	return nil
 }
+
+// 根据用户计算某月合计
+// month 格式为YYYYMM
+func (this *ServerDailyStatDAO) SumUserMonthly(userId int64, regionId int64, month string) (int64, error) {
+	return this.Query().
+		Attr("regionId", regionId).
+		Between("day", month+"01", month+"32").
+		Where("serverId IN (SELECT id FROM "+SharedServerDAO.Table+" WHERE userId=:userId)").
+		Param("userId", userId).
+		SumInt64("bytes", 0)
+}
diff --git a/internal/db/models/server_daily_stat_dao_test.go b/internal/db/models/server_daily_stat_dao_test.go
index 35a0241f..99c33f07 100644
--- a/internal/db/models/server_daily_stat_dao_test.go
+++ b/internal/db/models/server_daily_stat_dao_test.go
@@ -3,6 +3,8 @@ package models
 import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
 	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/dbs"
+	timeutil "github.com/iwind/TeaGo/utils/time"
 	"testing"
 )
 
@@ -37,3 +39,12 @@ func TestServerDailyStatDAO_SaveStats2(t *testing.T) {
 	}
 	t.Log("ok")
 }
+
+func TestServerDailyStatDAO_SumUserMonthly(t *testing.T) {
+	dbs.NotifyReady()
+	bytes, err := NewServerDailyStatDAO().SumUserMonthly(1, 1, timeutil.Format("Ym"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("bytes:", bytes)
+}
diff --git a/internal/db/models/server_daily_stat_model.go b/internal/db/models/server_daily_stat_model.go
index af6ce23e..be3e4041 100644
--- a/internal/db/models/server_daily_stat_model.go
+++ b/internal/db/models/server_daily_stat_model.go
@@ -2,23 +2,25 @@ package models
 
 // 计费流量统计
 type ServerDailyStat struct {
-	Id       uint64 `field:"id"`       // ID
-	ServerId uint32 `field:"serverId"` // 服务ID
-	RegionId uint32 `field:"regionId"` // 区域ID
-	Bytes    uint64 `field:"bytes"`    // 流量
-	Day      string `field:"day"`      // 日期YYYYMMDD
-	TimeFrom string `field:"timeFrom"` // 开始时间HHMMSS
-	TimeTo   string `field:"timeTo"`   // 结束时间
+	Id        uint64 `field:"id"`        // ID
+	ServerId  uint32 `field:"serverId"`  // 服务ID
+	RegionId  uint32 `field:"regionId"`  // 区域ID
+	Bytes     uint64 `field:"bytes"`     // 流量
+	Day       string `field:"day"`       // 日期YYYYMMDD
+	TimeFrom  string `field:"timeFrom"`  // 开始时间HHMMSS
+	TimeTo    string `field:"timeTo"`    // 结束时间
+	IsCharged uint8  `field:"isCharged"` // 是否已计算费用
 }
 
 type ServerDailyStatOperator struct {
-	Id       interface{} // ID
-	ServerId interface{} // 服务ID
-	RegionId interface{} // 区域ID
-	Bytes    interface{} // 流量
-	Day      interface{} // 日期YYYYMMDD
-	TimeFrom interface{} // 开始时间HHMMSS
-	TimeTo   interface{} // 结束时间
+	Id        interface{} // ID
+	ServerId  interface{} // 服务ID
+	RegionId  interface{} // 区域ID
+	Bytes     interface{} // 流量
+	Day       interface{} // 日期YYYYMMDD
+	TimeFrom  interface{} // 开始时间HHMMSS
+	TimeTo    interface{} // 结束时间
+	IsCharged interface{} // 是否已计算费用
 }
 
 func NewServerDailyStatOperator() *ServerDailyStatOperator {
diff --git a/internal/db/models/user_bill_dao.go b/internal/db/models/user_bill_dao.go
new file mode 100644
index 00000000..f0a8b2b4
--- /dev/null
+++ b/internal/db/models/user_bill_dao.go
@@ -0,0 +1,206 @@
+package models
+
+import (
+	"encoding/json"
+	"github.com/TeaOSLab/EdgeAPI/internal/utils/numberutils"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+)
+
+type BillType = string
+
+const (
+	BillTypeTraffic BillType = "traffic" // 按流量计费
+)
+
+type UserBillDAO dbs.DAO
+
+func NewUserBillDAO() *UserBillDAO {
+	return dbs.NewDAO(&UserBillDAO{
+		DAOObject: dbs.DAOObject{
+			DB:     Tea.Env,
+			Table:  "edgeUserBills",
+			Model:  new(UserBill),
+			PkName: "id",
+		},
+	}).(*UserBillDAO)
+}
+
+var SharedUserBillDAO *UserBillDAO
+
+func init() {
+	dbs.OnReady(func() {
+		SharedUserBillDAO = NewUserBillDAO()
+	})
+}
+
+// 计算账单数量
+func (this *UserBillDAO) CountAllUserBills(isPaid int32, userId int64, month string) (int64, error) {
+	query := this.Query()
+	if isPaid == 0 {
+		query.Attr("isPaid", 0)
+	} else if isPaid > 0 {
+		query.Attr("isPaid", 1)
+	}
+	if userId > 0 {
+		query.Attr("userId", userId)
+	}
+	if len(month) > 0 {
+		query.Attr("month", month)
+	}
+	return query.Count()
+}
+
+// 列出单页账单
+func (this *UserBillDAO) ListUserBills(isPaid int32, userId int64, month string, offset, size int64) (result []*UserBill, err error) {
+	query := this.Query()
+	if isPaid == 0 {
+		query.Attr("isPaid", 0)
+	} else if isPaid > 0 {
+		query.Attr("isPaid", 1)
+	}
+	if userId > 0 {
+		query.Attr("userId", userId)
+	}
+	if len(month) > 0 {
+		query.Attr("month", month)
+	}
+	_, err = query.
+		Offset(offset).
+		Limit(size).
+		Slice(&result).
+		DescPk().
+		FindAll()
+	return
+}
+
+// 创建账单
+func (this *UserBillDAO) CreateBill(userId int64, billType BillType, description string, amount float32, month string) (int64, error) {
+	op := NewUserBillOperator()
+	op.UserId = userId
+	op.Type = billType
+	op.Description = description
+	op.Amount = amount
+	op.Month = month
+	op.IsPaid = false
+	return this.SaveInt64(op)
+}
+
+// 检查是否有当月账单
+func (this *UserBillDAO) ExistBill(userId int64, billType BillType, month string) (bool, error) {
+	return this.Query().
+		Attr("userId", userId).
+		Attr("month", month).
+		Attr("type", billType).
+		Exist()
+}
+
+// 生成账单
+// month 格式YYYYMM
+func (this *UserBillDAO) GenerateBills(month string) error {
+	// 用户
+	offset := int64(0)
+	size := int64(100) // 每次只查询N次，防止由于执行时间过长而锁表
+	for {
+		userIds, err := SharedUserDAO.ListEnabledUserIds(offset, size)
+		if err != nil {
+			return err
+		}
+		offset += size
+		if len(userIds) == 0 {
+			break
+		}
+
+		for _, userId := range userIds {
+			// CDN流量账单
+			err := this.generateTrafficBill(userId, month)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+// 生成CDN流量账单
+// month 格式YYYYMM
+func (this *UserBillDAO) generateTrafficBill(userId int64, month string) error {
+	// 检查是否已经有账单了
+	b, err := this.ExistBill(userId, BillTypeTraffic, month)
+	if err != nil {
+		return err
+	}
+	if b {
+		return nil
+	}
+
+	// TODO 优化使用缓存
+	regions, err := SharedNodeRegionDAO.FindAllEnabledRegionPrices()
+	if err != nil {
+		return err
+	}
+	if len(regions) == 0 {
+		return nil
+	}
+
+	priceItems, err := SharedNodePriceItemDAO.FindAllEnabledRegionPrices(NodePriceTypeTraffic)
+	if err != nil {
+		return err
+	}
+	if len(priceItems) == 0 {
+		return nil
+	}
+
+	cost := float32(0)
+	for _, region := range regions {
+		if len(region.Prices) == 0 || region.Prices == "null" {
+			continue
+		}
+		priceMap := map[string]float32{}
+		err = json.Unmarshal([]byte(region.Prices), &priceMap)
+		if err != nil {
+			return err
+		}
+
+		trafficBytes, err := SharedServerDailyStatDAO.SumUserMonthly(userId, int64(region.Id), month)
+		if err != nil {
+			return err
+		}
+		if trafficBytes == 0 {
+			continue
+		}
+
+		itemId := SharedNodePriceItemDAO.SearchItemsWithBytes(priceItems, trafficBytes)
+		if itemId == 0 {
+			continue
+		}
+
+		price, ok := priceMap[numberutils.FormatInt64(itemId)]
+		if !ok {
+			continue
+		}
+
+		// 计算钱
+		// 这里采用1000进制
+		cost += (float32(trafficBytes*8) / 1_000_000_000) * price
+	}
+
+	if cost == 0 {
+		return nil
+	}
+
+	// 创建账单
+	_, err = this.CreateBill(userId, BillTypeTraffic, "按流量计费", cost, month)
+	return err
+}
+
+// 获取账单类型名称
+func (this *UserBillDAO) BillTypeName(billType BillType) string {
+	switch billType {
+	case BillTypeTraffic:
+		return "流量"
+	}
+	return ""
+}
diff --git a/internal/db/models/user_bill_dao_test.go b/internal/db/models/user_bill_dao_test.go
new file mode 100644
index 00000000..ed0204e2
--- /dev/null
+++ b/internal/db/models/user_bill_dao_test.go
@@ -0,0 +1,18 @@
+package models
+
+import (
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/dbs"
+	timeutil "github.com/iwind/TeaGo/utils/time"
+	"testing"
+)
+
+func TestUserBillDAO_GenerateBills(t *testing.T) {
+	dbs.NotifyReady()
+
+	err := SharedUserBillDAO.GenerateBills(timeutil.Format("Ym"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+}
diff --git a/internal/db/models/user_bill_model.go b/internal/db/models/user_bill_model.go
new file mode 100644
index 00000000..1d991190
--- /dev/null
+++ b/internal/db/models/user_bill_model.go
@@ -0,0 +1,30 @@
+package models
+
+// 用户账单
+type UserBill struct {
+	Id          uint64  `field:"id"`          // ID
+	UserId      uint32  `field:"userId"`      // 用户ID
+	Type        string  `field:"type"`        // 消费类型
+	Description string  `field:"description"` // 描述
+	Amount      float64 `field:"amount"`      // 消费数额
+	Month       string  `field:"month"`       // 帐期YYYYMM
+	IsPaid      uint8   `field:"isPaid"`      // 是否已支付
+	PaidAt      uint64  `field:"paidAt"`      // 支付时间
+	CreatedAt   uint64  `field:"createdAt"`   // 创建时间
+}
+
+type UserBillOperator struct {
+	Id          interface{} // ID
+	UserId      interface{} // 用户ID
+	Type        interface{} // 消费类型
+	Description interface{} // 描述
+	Amount      interface{} // 消费数额
+	Month       interface{} // 帐期YYYYMM
+	IsPaid      interface{} // 是否已支付
+	PaidAt      interface{} // 支付时间
+	CreatedAt   interface{} // 创建时间
+}
+
+func NewUserBillOperator() *UserBillOperator {
+	return &UserBillOperator{}
+}
diff --git a/internal/db/models/user_bill_model_ext.go b/internal/db/models/user_bill_model_ext.go
new file mode 100644
index 00000000..2640e7f9
--- /dev/null
+++ b/internal/db/models/user_bill_model_ext.go
@@ -0,0 +1 @@
+package models
diff --git a/internal/db/models/user_dao.go b/internal/db/models/user_dao.go
index 68fa6bfd..0d7a0802 100644
--- a/internal/db/models/user_dao.go
+++ b/internal/db/models/user_dao.go
@@ -160,3 +160,22 @@ func (this *UserDAO) ExistUser(userId int64, username string) (bool, error) {
 		Neq("id", userId).
 		Exist()
 }
+
+// 列出单页的用户ID
+func (this *UserDAO) ListEnabledUserIds(offset, size int64) ([]int64, error) {
+	ones, _, err := this.Query().
+		ResultPk().
+		State(UserStateEnabled).
+		Offset(offset).
+		Limit(size).
+		AscPk().
+		FindOnes()
+	if err != nil {
+		return nil, err
+	}
+	result := []int64{}
+	for _, one := range ones {
+		result = append(result, one.GetInt64("id"))
+	}
+	return result, nil
+}
diff --git a/internal/nodes/api_node.go b/internal/nodes/api_node.go
index 1ea6bea8..071b534d 100644
--- a/internal/nodes/api_node.go
+++ b/internal/nodes/api_node.go
@@ -204,6 +204,7 @@ func (this *APINode) listenRPC(listener net.Listener, tlsConfig *tls.Config) err
 	pb.RegisterACMEAuthenticationServiceServer(rpcServer, &services.ACMEAuthenticationService{})
 	pb.RegisterUserServiceServer(rpcServer, &services.UserService{})
 	pb.RegisterServerDailyStatServiceServer(rpcServer, &services.ServerDailyStatService{})
+	pb.RegisterUserBillServiceServer(rpcServer, &services.UserBillService{})
 	err := rpcServer.Serve(listener)
 	if err != nil {
 		return errors.New("[API_NODE]start rpc failed: " + err.Error())
diff --git a/internal/rpc/services/service_user_bill.go b/internal/rpc/services/service_user_bill.go
new file mode 100644
index 00000000..78637a1a
--- /dev/null
+++ b/internal/rpc/services/service_user_bill.go
@@ -0,0 +1,88 @@
+package services
+
+import (
+	"context"
+	"github.com/TeaOSLab/EdgeAPI/internal/db/models"
+	"github.com/TeaOSLab/EdgeAPI/internal/errors"
+	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
+	timeutil "github.com/iwind/TeaGo/utils/time"
+	"regexp"
+)
+
+// 账单相关服务
+type UserBillService struct {
+	BaseService
+}
+
+// 手工生成订单
+func (this *UserBillService) GenerateAllUserBills(ctx context.Context, req *pb.GenerateAllUserBillsRequest) (*pb.RPCSuccess, error) {
+	_, err := this.ValidateAdmin(ctx, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	// 校验Month
+	if !regexp.MustCompile(`^\d{6}$`).MatchString(req.Month) {
+		return nil, errors.New("invalid month '" + req.Month + "'")
+	}
+	if req.Month >= timeutil.Format("Ym") {
+		return nil, errors.New("invalid month '" + req.Month + "'")
+	}
+
+	err = models.SharedUserBillDAO.GenerateBills(req.Month)
+	if err != nil {
+		return nil, err
+	}
+
+	return this.Success()
+}
+
+// 计算所有账单数量
+func (this *UserBillService) CountAllUserBills(ctx context.Context, req *pb.CountAllUserBillsRequest) (*pb.RPCCountResponse, error) {
+	_, err := this.ValidateAdmin(ctx, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	count, err := models.SharedUserBillDAO.CountAllUserBills(req.PaidFlag, req.UserId, req.Month)
+	if err != nil {
+		return nil, err
+	}
+	return this.SuccessCount(count)
+}
+
+// 列出单页账单
+func (this *UserBillService) ListUserBills(ctx context.Context, req *pb.ListUserBillsRequest) (*pb.ListUserBillsResponse, error) {
+	_, err := this.ValidateAdmin(ctx, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	bills, err := models.SharedUserBillDAO.ListUserBills(req.PaidFlag, req.UserId, req.Month, req.Offset, req.Size)
+	if err != nil {
+		return nil, err
+	}
+	result := []*pb.UserBill{}
+	for _, bill := range bills {
+		userFullname, err := models.SharedUserDAO.FindUserFullname(int64(bill.UserId))
+		if err != nil {
+			return nil, err
+		}
+
+		result = append(result, &pb.UserBill{
+			Id: int64(bill.Id),
+			User: &pb.User{
+				Id:       int64(bill.UserId),
+				Fullname: userFullname,
+			},
+			Type:        bill.Type,
+			TypeName:    models.SharedUserBillDAO.BillTypeName(bill.Type),
+			Description: bill.Description,
+			Amount:      float32(bill.Amount),
+			Month:       bill.Month,
+			IsPaid:      bill.IsPaid == 1,
+			PaidAt:      int64(bill.PaidAt),
+		})
+	}
+	return &pb.ListUserBillsResponse{UserBills: result}, nil
+}