diff --git a/app/src/main/java/io/legado/app/constant/PreferKey.kt b/app/src/main/java/io/legado/app/constant/PreferKey.kt
index 72d8c6b15..b427f687b 100644
--- a/app/src/main/java/io/legado/app/constant/PreferKey.kt
+++ b/app/src/main/java/io/legado/app/constant/PreferKey.kt
@@ -32,6 +32,7 @@ object PreferKey {
     const val webDavUrl = "web_dav_url"
     const val webDavAccount = "web_dav_account"
     const val webDavPassword = "web_dav_password"
+    const val webDavCreateDir = "webDavCreateDir"
     const val changeSourceLoadToc = "changeSourceLoadToc"
     const val chineseConverterType = "chineseConverterType"
     const val launcherIcon = "launcherIcon"
diff --git a/app/src/main/java/io/legado/app/help/storage/SyncBookProgress.kt b/app/src/main/java/io/legado/app/help/storage/SyncBookProgress.kt
index 7966205fe..8f2bbaf47 100644
--- a/app/src/main/java/io/legado/app/help/storage/SyncBookProgress.kt
+++ b/app/src/main/java/io/legado/app/help/storage/SyncBookProgress.kt
@@ -11,7 +11,7 @@ import io.legado.app.utils.fromJsonArray
 @Suppress("BlockingMethodInNonBlockingContext")
 object SyncBookProgress {
     private val file = FileUtils.createFileIfNotExist(App.INSTANCE.cacheDir, "bookProgress.json")
-    private val webDavUrl = WebDavHelp.getWebDavUrl() + "legado/bookProgress.json"
+    private val webDavUrl = "${WebDavHelp.rootWebDavUrl}bookProgress.json"
 
     fun uploadBookProgress() {
         Coroutine.async {
@@ -20,7 +20,6 @@ object SyncBookProgress {
                 val json = GSON.toJson(value)
                 file.writeText(json)
                 if (WebDavHelp.initWebDav()) {
-                    WebDav(WebDavHelp.getWebDavUrl() + "legado").makeAsDir()
                     WebDav(webDavUrl).upload(file.absolutePath)
                 }
             }
diff --git a/app/src/main/java/io/legado/app/help/storage/WebDavHelp.kt b/app/src/main/java/io/legado/app/help/storage/WebDavHelp.kt
index 0b4b97aab..fc14289c5 100644
--- a/app/src/main/java/io/legado/app/help/storage/WebDavHelp.kt
+++ b/app/src/main/java/io/legado/app/help/storage/WebDavHelp.kt
@@ -10,6 +10,7 @@ import io.legado.app.lib.webdav.WebDav
 import io.legado.app.lib.webdav.http.HttpAuth
 import io.legado.app.utils.FileUtils
 import io.legado.app.utils.ZipUtils
+import io.legado.app.utils.getPrefBoolean
 import io.legado.app.utils.getPrefString
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.Dispatchers.Main
@@ -25,12 +26,16 @@ object WebDavHelp {
     private const val defaultWebDavUrl = "https://dav.jianguoyun.com/dav/"
     private val zipFilePath = "${FileUtils.getCachePath()}${File.separator}backup.zip"
 
-    fun getWebDavUrl(): String {
+    val rootWebDavUrl: String
+        get() {
         var url = App.INSTANCE.getPrefString(PreferKey.webDavUrl)
         if (url.isNullOrEmpty()) {
             url = defaultWebDavUrl
         }
-        if (!url.endsWith("/")) url += "/"
+            if (!url.endsWith("/")) url = "${url}/"
+            if (App.INSTANCE.getPrefBoolean(PreferKey.webDavCreateDir, true)) {
+                url = "${url}legado/"
+            }
         return url
     }
 
@@ -39,17 +44,18 @@ object WebDavHelp {
         val password = App.INSTANCE.getPrefString(PreferKey.webDavPassword)
         if (!account.isNullOrBlank() && !password.isNullOrBlank()) {
             HttpAuth.auth = HttpAuth.Auth(account, password)
+            WebDav(rootWebDavUrl).makeAsDir()
             return true
         }
         return false
     }
 
     private fun getWebDavFileNames(): ArrayList<String> {
-        val url = getWebDavUrl()
+        val url = rootWebDavUrl
         val names = arrayListOf<String>()
         if (initWebDav()) {
             try {
-                var files = WebDav(url + "legado/").listFiles()
+                var files = WebDav(url).listFiles()
                 files = files.reversed()
                 for (index: Int in 0 until min(10, files.size)) {
                     files[index].displayName?.let {
@@ -81,8 +87,8 @@ object WebDavHelp {
 
     private fun restoreWebDav(name: String, success: () -> Unit) {
         Coroutine.async {
-            getWebDavUrl().let {
-                val webDav = WebDav(it + "legado/" + name)
+            rootWebDavUrl.let {
+                val webDav = WebDav(it + name)
                 webDav.downloadTo(zipFilePath, true)
                 @Suppress("BlockingMethodInNonBlockingContext")
                 ZipUtils.unzipFile(zipFilePath, Backup.backupPath)
@@ -102,10 +108,9 @@ object WebDavHelp {
                 }
                 FileUtils.deleteFile(zipFilePath)
                 if (ZipUtils.zipFiles(paths, zipFilePath)) {
-                    WebDav(getWebDavUrl() + "legado").makeAsDir()
-                    val putUrl = getWebDavUrl() + "legado/backup" +
-                            SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
-                                .format(Date(System.currentTimeMillis())) + ".zip"
+                    val backupDate = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+                        .format(Date(System.currentTimeMillis()))
+                    val putUrl = "${rootWebDavUrl}backup${backupDate}.zip"
                     WebDav(putUrl).upload(zipFilePath)
                 }
             }
diff --git a/app/src/main/res/xml/pref_config_backup.xml b/app/src/main/res/xml/pref_config_backup.xml
index 3f99cfef2..b2442aa09 100644
--- a/app/src/main/res/xml/pref_config_backup.xml
+++ b/app/src/main/res/xml/pref_config_backup.xml
@@ -24,6 +24,13 @@
             android:summary="@string/web_dav_pw_s"
             app:iconSpaceReserved="false" />
 
+        <io.legado.app.ui.widget.prefs.SwitchPreference
+            android:key="webDavCreateDir"
+            android:defaultValue="true"
+            android:title="创建子文件夹"
+            android:summary="创建legado文件夹作为备份文件夹"
+            app:iconSpaceReserved="false" />
+
     </io.legado.app.ui.widget.prefs.PreferenceCategory>
 
     <io.legado.app.ui.widget.prefs.PreferenceCategory app:iconSpaceReserved="false">