diff --git a/db/db.go b/db/db.go
index a05cb83..46f1de5 100644
--- a/db/db.go
+++ b/db/db.go
@@ -311,11 +311,12 @@ type LocalDirSetting struct {
 }
 
 type WebdavSetting struct {
-	URL       string `json:"url"`
-	TvPath    string `json:"tv_path"`
-	MoviePath string `json:"movie_path"`
-	User      string `json:"user"`
-	Password  string `json:"password"`
+	URL            string `json:"url"`
+	TvPath         string `json:"tv_path"`
+	MoviePath      string `json:"movie_path"`
+	User           string `json:"user"`
+	Password       string `json:"password"`
+	ChangeFileHash string `json:"change_file_hash"`
 }
 
 func (c *Client) AddStorage(st *StorageInfo) error {
diff --git a/pkg/storage/webdav.go b/pkg/storage/webdav.go
index 7d7089f..632bde7 100644
--- a/pkg/storage/webdav.go
+++ b/pkg/storage/webdav.go
@@ -7,6 +7,7 @@ import (
 	"path/filepath"
 	"polaris/log"
 	"polaris/pkg/gowebdav"
+	"polaris/pkg/utils"
 
 	"github.com/gabriel-vasile/mimetype"
 	"github.com/pkg/errors"
@@ -15,9 +16,10 @@ import (
 type WebdavStorage struct {
 	fs *gowebdav.Client
 	dir string
+	changeMediaHash bool
 }
 
-func NewWebdavStorage(url, user, password, path string) (*WebdavStorage, error) {
+func NewWebdavStorage(url, user, password, path string, changeMediaHash bool) (*WebdavStorage, error) {
 	c := gowebdav.NewClient(url, user, password)
 	if err := c.Connect(); err != nil {
 		return nil, errors.Wrap(err, "connect webdav")
@@ -53,6 +55,11 @@ func (w *WebdavStorage) Move(local, remote string) error {
 			// }
 
 		} else { //is file
+			if w.changeMediaHash {
+				if err := utils.ChangeFileHash(path); err != nil {
+					log.Errorf("change file %v hash error: %v", path, err)
+				}
+			}
 			if f, err := os.OpenFile(path, os.O_RDONLY, 0666); err != nil {
 				return errors.Wrapf(err, "read file %v", path)
 			} else { //open success
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
index 3b1b412..7fcde68 100644
--- a/pkg/utils/utils.go
+++ b/pkg/utils/utils.go
@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"os"
 	"regexp"
 	"strconv"
 	"strings"
@@ -146,3 +147,16 @@ func AvailableSpace(dir string) uint64 {
 	unix.Statfs(dir, &stat)
 	return stat.Bavail * uint64(stat.Bsize)
 }
+
+func ChangeFileHash(name string) error {
+	f, err := os.OpenFile(name, os.O_APPEND|os.O_WRONLY, 0655)
+	if err != nil {
+		return errors.Wrap(err, "open file")
+	}
+	defer f.Close()
+	_, err = f.Write([]byte("\000"))
+	if err != nil {
+		return errors.Wrap(err, "write file")
+	}
+	return nil
+}
diff --git a/server/scheduler.go b/server/scheduler.go
index ab2fcbe..18dfbb4 100644
--- a/server/scheduler.go
+++ b/server/scheduler.go
@@ -101,7 +101,7 @@ func (s *Server) moveCompletedTask(id int) (err1 error) {
 		if series.MediaType == media.MediaTypeMovie {
 			targetPath = ws.MoviePath
 		}
-		storageImpl, err := storage.NewWebdavStorage(ws.URL, ws.User, ws.Password, targetPath)
+		storageImpl, err := storage.NewWebdavStorage(ws.URL, ws.User, ws.Password, targetPath, ws.ChangeFileHash == "true")
 		if err != nil {
 			return errors.Wrap(err, "new webdav")
 		}
@@ -162,7 +162,7 @@ func (s *Server) checkDownloadedSeriesFiles(m *ent.Media) error {
 	case storage1.ImplementationWebdav:
 		ws := st.ToWebDavSetting()
 		targetPath := ws.TvPath
-		storageImpl1, err := storage.NewWebdavStorage(ws.URL, ws.User, ws.Password, targetPath)
+		storageImpl1, err := storage.NewWebdavStorage(ws.URL, ws.User, ws.Password, targetPath, ws.ChangeFileHash == "true")
 		if err != nil {
 			return errors.Wrap(err, "new webdav")
 		}
diff --git a/ui/lib/providers/settings.dart b/ui/lib/providers/settings.dart
index f047f4f..3da910b 100644
--- a/ui/lib/providers/settings.dart
+++ b/ui/lib/providers/settings.dart
@@ -258,7 +258,12 @@ class StorageSettingData extends AutoDisposeAsyncNotifier<List<Storage>> {
 
 class Storage {
   Storage(
-      {this.id, this.name, this.implementation, this.settings, this.isDefault});
+      {this.id,
+      this.name,
+      this.implementation,
+      this.settings,
+      this.isDefault,
+      });
 
   final int? id;
   final String? name;
diff --git a/ui/lib/system_settings.dart b/ui/lib/system_settings.dart
index b03e5b4..63d2b7f 100644
--- a/ui/lib/system_settings.dart
+++ b/ui/lib/system_settings.dart
@@ -386,12 +386,15 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
     var urlController = TextEditingController();
     var userController = TextEditingController();
     var passController = TextEditingController();
+    bool enablingChangeFileHash = false;
     if (s.settings != null) {
       tvPathController.text = s.settings!["tv_path"] ?? "";
       moviePathController.text = s.settings!["movie_path"] ?? "";
       urlController.text = s.settings!["url"] ?? "";
       userController.text = s.settings!["user"] ?? "";
       passController.text = s.settings!["password"] ?? "";
+      enablingChangeFileHash =
+          s.settings!["change_file_hash"] == "true" ? true : false;
     }
 
     String selectImpl = s.implementation == null ? "local" : s.implementation!;
@@ -419,7 +422,7 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
           ),
           selectImpl != "local"
               ? Column(
-                crossAxisAlignment: CrossAxisAlignment.start,
+                  crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
                     TextField(
                       decoration: const InputDecoration(labelText: "Webdav地址"),
@@ -433,6 +436,14 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
                       decoration: const InputDecoration(labelText: "密码"),
                       controller: passController,
                     ),
+                    CheckboxListTile(
+                        title: const Text("上传时更改文件哈希", style: TextStyle(fontSize: 14),),
+                        value: enablingChangeFileHash,
+                        onChanged: (v) {
+                          setState(() {
+                            enablingChangeFileHash = v??false;
+                          });
+                        }),
                   ],
                 )
               : Container(),
@@ -456,7 +467,8 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
               "movie_path": moviePathController.text,
               "url": urlController.text,
               "user": userController.text,
-              "password": passController.text
+              "password": passController.text,
+              "change_file_hash": enablingChangeFileHash ? "true" : "false"
             },
           ));
     }