diff --git a/client/highway.go b/client/highway.go
new file mode 100644
index 00000000..ed5130f4
--- /dev/null
+++ b/client/highway.go
@@ -0,0 +1,140 @@
+package client
+
+import (
+	"bytes"
+	"github.com/LagrangeDev/LagrangeGo/packets/pb/service/highway"
+	"github.com/LagrangeDev/LagrangeGo/utils"
+	"github.com/LagrangeDev/LagrangeGo/utils/binary"
+	"github.com/RomiChan/protobuf/proto"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+)
+
+type UpBlock struct {
+	CommandId  int
+	Uin        uint
+	Sequence   uint
+	FileSize   uint64
+	Offset     uint64
+	Ticket     []byte
+	FileMd5    []byte
+	Block      []byte
+	ExtendInfo []byte
+	Timestamp  uint64
+}
+
+func (c *QQClient) SendUpBlockAsync(block UpBlock, server string) bool {
+	head := &highway.DataHighwayHead{
+		Version:   1,
+		Uin:       proto.Some(strconv.Itoa(int(block.Uin))),
+		Command:   proto.Some("PicUp.DataUp"),
+		Seq:       uint32(block.Sequence),
+		AppId:     uint32(c.appInfo.AppID),
+		DataFlag:  16,
+		CommandId: uint32(block.CommandId),
+	}
+	md5 := utils.Md5Digest(block.Block)
+	segHead := &highway.SegHead{
+		Filesize:      block.FileSize,
+		DataOffset:    block.Offset,
+		DataLength:    uint32(len(block.Block)),
+		ServiceTicket: block.Ticket,
+		Md5:           md5,
+		FileMd5:       block.FileMd5,
+	}
+	loginHead := &highway.LoginSigHead{
+		Uint32LoginSigType: 8,
+		BytesLoginSig:      c.sig.Tgt,
+		AppId:              uint32(c.appInfo.AppID),
+	}
+	highwayHead := &highway.ReqDataHighwayHead{
+		MsgBaseHead:        head,
+		MsgSegHead:         segHead,
+		BytesReqExtendInfo: block.ExtendInfo,
+		Timestamp:          block.Timestamp,
+		MsgLoginSigHead:    loginHead,
+	}
+	isEnd := block.Offset+uint64(len(block.Block)) == block.FileSize
+	packet := &binary.Builder{}
+	packet.WriteBytes(block.Block, false)
+	payload, err := SendPacketAsync(highwayHead, packet, server, isEnd)
+	if err != nil {
+		return false
+	}
+	resphead, respbody, err := ParsePacket(payload)
+	if err != nil {
+		return false
+	}
+	networkLogger.Infof("Highway Block Result: %d | %d | %x | %v", resphead.ErrorCode, resphead.MsgSegHead.RetCode, resphead.BytesRspExtendInfo, respbody)
+	return resphead.ErrorCode == 0
+}
+
+func ParsePacket(data []byte) (head *highway.RespDataHighwayHead, body *binary.Reader, err error) {
+	reader := binary.NewReader(data)
+	if reader.ReadBytes(1)[0] == 0x28 {
+		headlength := reader.ReadU32()
+		bodylength := reader.ReadU32()
+		err = proto.Unmarshal(reader.ReadBytes(int(headlength)), &head)
+		if err != nil {
+			return nil, nil, err
+		}
+		err = proto.Unmarshal(reader.ReadBytes(int(bodylength)), body)
+		if err != nil {
+			return nil, nil, err
+		}
+		if reader.ReadBytes(1)[0] == 0x29 {
+			return head, body, nil
+		}
+	}
+	return nil, nil, err
+}
+
+func SendPacketAsync(packet *highway.ReqDataHighwayHead, buffer *binary.Builder, serverURL string, end bool) ([]byte, error) {
+	marshal, err := proto.Marshal(packet)
+	if err != nil {
+		return nil, err
+	}
+	writer := binary.NewBuilder(nil).WriteBytes([]byte{0x28}, false).WriteU32(uint32(len(marshal))).WriteU32(uint32(buffer.Len())).WriteBytes(buffer.Data(), false).WriteBytes([]byte{0x29}, false)
+	return SendDataAsync(writer.Data(), serverURL, end)
+}
+
+func SendDataAsync(packet []byte, serverURL string, end bool) ([]byte, error) {
+	// Parse server URL
+	server, err := url.Parse(serverURL)
+	if err != nil {
+		return nil, err
+	}
+
+	// Create request
+	content := bytes.NewBuffer(packet)
+	req, err := http.NewRequest("POST", server.String(), content)
+	if err != nil {
+		return nil, err
+	}
+
+	// Set headers
+	if end {
+		req.Header.Set("Connection", "close")
+	} else {
+		req.Header.Set("Connection", "keep-alive")
+	}
+
+	// Send request
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer func(Body io.ReadCloser) {
+		_ = Body.Close()
+	}(resp.Body)
+
+	// Read response data
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	return data, nil
+}