diff --git a/drivers/123/123.go b/drivers/123/123.go
index e93f144b..26d87af6 100644
--- a/drivers/123/123.go
+++ b/drivers/123/123.go
@@ -3,14 +3,15 @@ package _23
 import (
 	"errors"
 	"fmt"
+	"path/filepath"
+	"strconv"
+
 	"github.com/Xhofe/alist/drivers/base"
 	"github.com/Xhofe/alist/model"
 	"github.com/Xhofe/alist/utils"
 	"github.com/go-resty/resty/v2"
 	jsoniter "github.com/json-iterator/go"
 	log "github.com/sirupsen/logrus"
-	"path/filepath"
-	"strconv"
 )
 
 func (driver Pan123) Login(account *model.Account) error {
diff --git a/drivers/123/driver.go b/drivers/123/driver.go
index eeb6bebd..1ffa69ef 100644
--- a/drivers/123/driver.go
+++ b/drivers/123/driver.go
@@ -4,6 +4,13 @@ import (
 	"crypto/md5"
 	"encoding/hex"
 	"fmt"
+	"io"
+	"io/ioutil"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strconv"
+
 	"github.com/Xhofe/alist/conf"
 	"github.com/Xhofe/alist/drivers/base"
 	"github.com/Xhofe/alist/model"
@@ -13,12 +20,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws/session"
 	"github.com/aws/aws-sdk-go/service/s3/s3manager"
 	log "github.com/sirupsen/logrus"
-	"io"
-	"io/ioutil"
-	"net/url"
-	"os"
-	"path/filepath"
-	"strconv"
 )
 
 type Pan123 struct{}
@@ -300,46 +301,36 @@ func (driver Pan123) Upload(file *model.FileStream, account *model.Account) erro
 	if !parentFile.IsDir() {
 		return base.ErrNotFolder
 	}
-	parentFileId, _ := strconv.Atoi(parentFile.Id)
+
 	tempFile, err := ioutil.TempFile(conf.Conf.TempDir, "file-*")
 	if err != nil {
 		return err
 	}
-	defer func() {
-		_ = tempFile.Close()
-		_ = os.Remove(tempFile.Name())
-	}()
-	_, err = io.Copy(tempFile, file)
-	if err != nil {
-		return err
-	}
-	_, err = tempFile.Seek(0, io.SeekStart)
-	if err != nil {
-		return err
-	}
+	defer tempFile.Close()
+	defer os.Remove(tempFile.Name())
 	h := md5.New()
-	_, err = io.Copy(h, tempFile)
-	if err != nil {
+	if _, err = io.Copy(io.MultiWriter(tempFile, h), file); err != nil {
 		return err
 	}
 	etag := hex.EncodeToString(h.Sum(nil))
-	log.Debugln("md5:", etag)
+
 	_, err = tempFile.Seek(0, io.SeekStart)
 	if err != nil {
 		return err
 	}
+
 	data := base.Json{
 		"driveId":      0,
-		"duplicate":    true,
+		"duplicate":    2, // 2->覆盖 1->重命名 0->默认
 		"etag":         etag,
 		"fileName":     file.GetFileName(),
-		"parentFileId": parentFileId,
+		"parentFileId": parentFile.Id,
 		"size":         file.GetSize(),
 		"type":         0,
 	}
 	var resp UploadResp
 	_, err = driver.Request("https://www.123pan.com/api/file/upload_request",
-		base.Post, nil, nil, &data, &resp, false, account)
+		base.Post, map[string]string{"app-version": "1.1"}, nil, &data, &resp, false, account)
 	//res, err := driver.Post("https://www.123pan.com/api/file/upload_request", data, account)
 	if err != nil {
 		return err