diff --git a/api/service/api.pb.go b/api/service/api.pb.go
index 9e07af7..8bc37e1 100644
--- a/api/service/api.pb.go
+++ b/api/service/api.pb.go
@@ -664,10 +664,11 @@ type SetUsersRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	User       *User                     `protobuf:"bytes,1,opt,name=user,proto3" json:"user,omitempty"`
-	Operation  SetUsersRequest_Operation `protobuf:"varint,2,opt,name=operation,proto3,enum=trojan.api.SetUsersRequest_Operation" json:"operation,omitempty"`
-	SpeedLimit *Speed                    `protobuf:"bytes,3,opt,name=speed_limit,json=speedLimit,proto3" json:"speed_limit,omitempty"`
-	IpLimit    int32                     `protobuf:"varint,4,opt,name=ip_limit,json=ipLimit,proto3" json:"ip_limit,omitempty"`
+	User         *User                     `protobuf:"bytes,1,opt,name=user,proto3" json:"user,omitempty"`
+	Operation    SetUsersRequest_Operation `protobuf:"varint,2,opt,name=operation,proto3,enum=trojan.api.SetUsersRequest_Operation" json:"operation,omitempty"`
+	SpeedLimit   *Speed                    `protobuf:"bytes,3,opt,name=speed_limit,json=speedLimit,proto3" json:"speed_limit,omitempty"`
+	IpLimit      int32                     `protobuf:"varint,4,opt,name=ip_limit,json=ipLimit,proto3" json:"ip_limit,omitempty"`
+	TrafficTotal *Traffic                  `protobuf:"bytes,5,opt,name=traffic_total,json=trafficTotal,proto3" json:"traffic_total,omitempty"`
 }
 
 func (x *SetUsersRequest) Reset() {
@@ -730,6 +731,13 @@ func (x *SetUsersRequest) GetIpLimit() int32 {
 	return 0
 }
 
+func (x *SetUsersRequest) GetTrafficTotal() *Traffic {
+	if x != nil {
+		return x.TrafficTotal
+	}
+	return nil
+}
+
 type SetUsersResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -857,7 +865,7 @@ var file_api_proto_rawDesc = []byte{
 	0x72, 0x52, 0x04, 0x75, 0x73, 0x65, 0x72, 0x12, 0x2e, 0x0a, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75,
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@@ -870,37 +878,41 @@ var file_api_proto_rawDesc = []byte{
 	0x6f, 0x6a, 0x61, 0x6e, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x53, 0x70, 0x65, 0x65, 0x64, 0x52, 0x0a,
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+	0x00, 0x28, 0x01, 0x30, 0x01, 0x42, 0x0b, 0x5a, 0x09, 0x2e, 0x3b, 0x73, 0x65, 0x72, 0x76, 0x69,
+	0x63, 0x65, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -948,19 +960,20 @@ var file_api_proto_depIdxs = []int32{
 	3,  // 12: trojan.api.SetUsersRequest.user:type_name -> trojan.api.User
 	0,  // 13: trojan.api.SetUsersRequest.operation:type_name -> trojan.api.SetUsersRequest.Operation
 	2,  // 14: trojan.api.SetUsersRequest.speed_limit:type_name -> trojan.api.Speed
-	5,  // 15: trojan.api.TrojanClientService.GetTraffic:input_type -> trojan.api.GetTrafficRequest
-	7,  // 16: trojan.api.TrojanServerService.ListUsers:input_type -> trojan.api.ListUsersRequest
-	9,  // 17: trojan.api.TrojanServerService.GetUsers:input_type -> trojan.api.GetUsersRequest
-	11, // 18: trojan.api.TrojanServerService.SetUsers:input_type -> trojan.api.SetUsersRequest
-	6,  // 19: trojan.api.TrojanClientService.GetTraffic:output_type -> trojan.api.GetTrafficResponse
-	8,  // 20: trojan.api.TrojanServerService.ListUsers:output_type -> trojan.api.ListUsersResponse
-	10, // 21: trojan.api.TrojanServerService.GetUsers:output_type -> trojan.api.GetUsersResponse
-	12, // 22: trojan.api.TrojanServerService.SetUsers:output_type -> trojan.api.SetUsersResponse
-	19, // [19:23] is the sub-list for method output_type
-	15, // [15:19] is the sub-list for method input_type
-	15, // [15:15] is the sub-list for extension type_name
-	15, // [15:15] is the sub-list for extension extendee
-	0,  // [0:15] is the sub-list for field type_name
+	1,  // 15: trojan.api.SetUsersRequest.traffic_total:type_name -> trojan.api.Traffic
+	5,  // 16: trojan.api.TrojanClientService.GetTraffic:input_type -> trojan.api.GetTrafficRequest
+	7,  // 17: trojan.api.TrojanServerService.ListUsers:input_type -> trojan.api.ListUsersRequest
+	9,  // 18: trojan.api.TrojanServerService.GetUsers:input_type -> trojan.api.GetUsersRequest
+	11, // 19: trojan.api.TrojanServerService.SetUsers:input_type -> trojan.api.SetUsersRequest
+	6,  // 20: trojan.api.TrojanClientService.GetTraffic:output_type -> trojan.api.GetTrafficResponse
+	8,  // 21: trojan.api.TrojanServerService.ListUsers:output_type -> trojan.api.ListUsersResponse
+	10, // 22: trojan.api.TrojanServerService.GetUsers:output_type -> trojan.api.GetUsersResponse
+	12, // 23: trojan.api.TrojanServerService.SetUsers:output_type -> trojan.api.SetUsersResponse
+	20, // [20:24] is the sub-list for method output_type
+	16, // [16:20] is the sub-list for method input_type
+	16, // [16:16] is the sub-list for extension type_name
+	16, // [16:16] is the sub-list for extension extendee
+	0,  // [0:16] is the sub-list for field type_name
 }
 
 func init() { file_api_proto_init() }
diff --git a/api/service/api.proto b/api/service/api.proto
index 6fc00bb..4321bc3 100644
--- a/api/service/api.proto
+++ b/api/service/api.proto
@@ -67,6 +67,7 @@ message SetUsersRequest {
     Operation operation = 2;
     Speed speed_limit = 3;
     int32 ip_limit = 4;
+    Traffic traffic_total = 5;
 }
 
 message SetUsersResponse {
diff --git a/api/service/server.go b/api/service/server.go
index 203afb8..6a99a2b 100644
--- a/api/service/server.go
+++ b/api/service/server.go
@@ -113,6 +113,9 @@ func (s *ServerAPI) SetUsers(stream TrojanServerService_SetUsersServer) error {
 				if req.IpLimit > 0 {
 					user.SetIPLimit(int(req.IpLimit))
 				}
+				if req.TrafficTotal.DownloadTraffic > 0 || req.TrafficTotal.UploadTraffic > 0 {
+					user.SetTrafficTotal(req.TrafficTotal.DownloadTraffic, req.TrafficTotal.UploadTraffic)
+				}
 			}
 		}
 		if err != nil {
diff --git a/api/service/server_test.go b/api/service/server_test.go
index cd31c86..9b1e74a 100644
--- a/api/service/server_test.go
+++ b/api/service/server_test.go
@@ -105,6 +105,10 @@ func TestServerAPI(t *testing.T) {
 			DownloadSpeed: 5000,
 			UploadSpeed:   3000,
 		},
+		TrafficTotal: &Traffic{
+			DownloadTraffic: 1,
+			UploadTraffic: 1,
+		},
 	})
 	go func() {
 		for {
diff --git a/statistic/memory/memory.go b/statistic/memory/memory.go
index 4a0bb7d..7401dc7 100644
--- a/statistic/memory/memory.go
+++ b/statistic/memory/memory.go
@@ -124,6 +124,11 @@ func (u *User) Hash() string {
 	return u.hash
 }
 
+func (u *User) SetTrafficTotal(send, recv uint64) {
+	atomic.StoreUint64(&u.sent, send)
+	atomic.StoreUint64(&u.recv, recv)
+}
+
 func (u *User) GetTraffic() (uint64, uint64) {
 	return atomic.LoadUint64(&u.sent), atomic.LoadUint64(&u.recv)
 }
diff --git a/statistic/statistics.go b/statistic/statistics.go
index 97326b8..5f226ac 100644
--- a/statistic/statistics.go
+++ b/statistic/statistics.go
@@ -19,6 +19,7 @@ type TrafficMeter interface {
 	GetSpeed() (sent, recv uint64)
 	SetSpeedLimit(send, recv int)
 	GetSpeedLimit() (send, recv int)
+	SetTrafficTotal(send, recv uint64)
 }
 
 type IPRecorder interface {