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 62ff58866..c0951a129 100644
--- a/app/src/main/java/io/legado/app/constant/PreferKey.kt
+++ b/app/src/main/java/io/legado/app/constant/PreferKey.kt
@@ -49,7 +49,7 @@ 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 webDavDir = "webDavDir"
     const val exportToWebDav = "webDavCacheBackup"
     const val exportNoChapterName = "exportNoChapterName"
     const val exportType = "exportType"
diff --git a/app/src/main/java/io/legado/app/help/AppConfig.kt b/app/src/main/java/io/legado/app/help/AppConfig.kt
index 0f8fa940e..8375e07d6 100644
--- a/app/src/main/java/io/legado/app/help/AppConfig.kt
+++ b/app/src/main/java/io/legado/app/help/AppConfig.kt
@@ -271,6 +271,8 @@ object AppConfig : SharedPreferences.OnSharedPreferenceChangeListener {
 
     val replaceEnableDefault get() = appCtx.getPrefBoolean(PreferKey.replaceEnableDefault, true)
 
+    val webDavDir get() = appCtx.getPrefString(PreferKey.webDavDir, "legado")
+
     val recordLog get() = appCtx.getPrefBoolean(PreferKey.recordLog)
 
     val doublePageHorizontal: Boolean
diff --git a/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt b/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt
index 1fc779247..dc6f66aef 100644
--- a/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt
+++ b/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt
@@ -29,13 +29,13 @@ object AppWebDav {
 
     private val rootWebDavUrl: String
         get() {
-            var url = appCtx.getPrefString(PreferKey.webDavUrl)?.trim()
-            if (url.isNullOrEmpty()) {
-                url = defaultWebDavUrl
-            }
+            val configUrl = appCtx.getPrefString(PreferKey.webDavUrl)?.trim()
+            var url = if (configUrl.isNullOrEmpty()) defaultWebDavUrl else configUrl
             if (!url.endsWith("/")) url = "${url}/"
-            if (appCtx.getPrefBoolean(PreferKey.webDavCreateDir, true)) {
-                url = "${url}legado/"
+            AppConfig.webDavDir?.trim()?.let {
+                if (it.isNotEmpty()) {
+                    url = "${url}${it}/"
+                }
             }
             return url
         }
diff --git a/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt
index 6314e693b..6d5377760 100644
--- a/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt
@@ -121,6 +121,7 @@ class BackupConfigFragment : BasePreferenceFragment(),
         upPreferenceSummary(PreferKey.webDavUrl, getPrefString(PreferKey.webDavUrl))
         upPreferenceSummary(PreferKey.webDavAccount, getPrefString(PreferKey.webDavAccount))
         upPreferenceSummary(PreferKey.webDavPassword, getPrefString(PreferKey.webDavPassword))
+        upPreferenceSummary(PreferKey.webDavDir, AppConfig.webDavDir)
         upPreferenceSummary(PreferKey.backupPath, getPrefString(PreferKey.backupPath))
         findPreference<io.legado.app.ui.widget.prefs.Preference>("web_dav_restore")
             ?.onLongClick { restoreDir.launch(); true }
@@ -168,6 +169,7 @@ class BackupConfigFragment : BasePreferenceFragment(),
             PreferKey.backupPath -> {
                 upPreferenceSummary(key, getPrefString(key))
             }
+            PreferKey.webDavDir -> upPreferenceSummary(key, AppConfig.webDavDir)
         }
     }
 
@@ -192,6 +194,11 @@ class BackupConfigFragment : BasePreferenceFragment(),
                 } else {
                     preference.summary = "*".repeat(value.toString().length)
                 }
+            PreferKey.webDavDir -> if (value.isNullOrBlank()) {
+                preference.summary = "null"
+            } else {
+                preference.summary = value
+            }
             else -> {
                 if (preference is ListPreference) {
                     val index = preference.findIndexOfValue(value)
diff --git a/app/src/main/res/values-es-rES/strings.xml b/app/src/main/res/values-es-rES/strings.xml
index 52599d81a..f43d92ac1 100644
--- a/app/src/main/res/values-es-rES/strings.xml
+++ b/app/src/main/res/values-es-rES/strings.xml
@@ -9,8 +9,6 @@
     <string name="menu_backup">Inicio</string>
     <string name="menu_restore">Restaurar</string>
     <string name="menu_import_old">Importar datos de Legado</string>
-    <string name="mkdirs">Crear carpeta</string>
-    <string name="mkdirs_description">Crea una carpeta de respaldo bajo el nombre de Legado.</string>
     <string name="webdav_cache_backup">Respaldo de caché de libros sin conexión</string>
     <string name="webdav_cache_backup_s">Exporta localmente lo respalda para su exportación</string>
     <string name="backup_path">Respaldar para</string>
@@ -927,5 +925,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">子文件夹</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/values-ja-rJP/strings.xml b/app/src/main/res/values-ja-rJP/strings.xml
index 7ee8d230b..69147d155 100644
--- a/app/src/main/res/values-ja-rJP/strings.xml
+++ b/app/src/main/res/values-ja-rJP/strings.xml
@@ -9,8 +9,6 @@
     <string name="menu_backup">Home</string>
     <string name="menu_restore">Restore</string>
     <string name="menu_import_old">Import Legado data</string>
-    <string name="mkdirs">Create a subfolder</string>
-    <string name="mkdirs_description">Create a folder named Legado as the backup folder.</string>
     <string name="webdav_cache_backup">Offline cache book backup</string>
     <string name="webdav_cache_backup_s">Export to local and back up to the exports directory under the legado folder</string>
     <string name="backup_path">Backup to</string>
@@ -930,5 +928,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">子文件夹</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index e4056e388..94949dc6d 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -9,8 +9,6 @@
     <string name="menu_backup">Início</string>
     <string name="menu_restore">Restaurar</string>
     <string name="menu_import_old">Importar dados ao Legado</string>
-    <string name="mkdirs">Criar uma subpasta</string>
-    <string name="mkdirs_description">Criar uma pasta de Backup com o nome Legado.</string>
     <string name="webdav_cache_backup">Backup do cache dos livros para leitura off-line</string>
     <string name="webdav_cache_backup_s">Exportar localmente e fazer Backup à pasta de exportação</string>
     <string name="backup_path">Backup para</string>
@@ -930,5 +928,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">子文件夹</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/values-zh-rHK/strings.xml b/app/src/main/res/values-zh-rHK/strings.xml
index 891ea6dcb..6ac0b6001 100644
--- a/app/src/main/res/values-zh-rHK/strings.xml
+++ b/app/src/main/res/values-zh-rHK/strings.xml
@@ -8,8 +8,6 @@
     <string name="menu_backup">Home</string>
     <string name="menu_restore">還原</string>
     <string name="menu_import_old">導入閲讀數據</string>
-    <string name="mkdirs">創建子文件夾</string>
-    <string name="mkdirs_description">創建 legado 文件夾作爲備份路徑</string>
     <string name="webdav_cache_backup">離線緩存書籍備份</string>
     <string name="webdav_cache_backup_s">導出本地同時備份到legado文件夾下exports目錄</string>
     <string name="backup_path">備份路徑</string>
@@ -927,5 +925,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">子文件夹</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index c1dd02fc1..a9cfc60f2 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -8,8 +8,6 @@
     <string name="menu_backup">備份</string>
     <string name="menu_restore">復原</string>
     <string name="menu_import_old">匯入閱讀資料</string>
-    <string name="mkdirs">建立子資料夾</string>
-    <string name="mkdirs_description">建立legado資料夾作為備份資料夾</string>
     <string name="webdav_cache_backup">離線快取書籍備份</string>
     <string name="webdav_cache_backup_s">匯出本機同時備份到legado資料夾下exports目錄</string>
     <string name="backup_path">備份路徑</string>
@@ -929,5 +927,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">子文件夹</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 87e293862..656992fdf 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -8,8 +8,6 @@
     <string name="menu_backup">Home</string>
     <string name="menu_restore">恢复</string>
     <string name="menu_import_old">导入阅读数据</string>
-    <string name="mkdirs">创建子文件夹</string>
-    <string name="mkdirs_description">创建legado文件夹作为备份文件夹</string>
     <string name="webdav_cache_backup">离线缓存书籍备份</string>
     <string name="webdav_cache_backup_s">导出本地同时备份到legado文件夹下exports目录</string>
     <string name="backup_path">备份路径</string>
@@ -929,5 +927,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">子文件夹</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a8314a49f..a5cbace51 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -9,8 +9,6 @@
     <string name="menu_backup">Home</string>
     <string name="menu_restore">Restore</string>
     <string name="menu_import_old">Import Legado data</string>
-    <string name="mkdirs">Create a subfolder</string>
-    <string name="mkdirs_description">Create a folder named Legado as the backup folder.</string>
     <string name="webdav_cache_backup">Offline cache book backup</string>
     <string name="webdav_cache_backup_s">Export to local and back up to the exports directory under the legado folder</string>
     <string name="backup_path">Backup to</string>
@@ -930,5 +928,6 @@
     <string name="less_than">小于</string>
     <string name="check_source_config_summary">校验超时: %1$s秒\n校验项目:%2$s</string>
     <string name="record_debug_log">记录调试日志</string>
+    <string name="sub_dir">Sub dir</string>
     <!-- string end -->
 </resources>
diff --git a/app/src/main/res/xml/pref_config_backup.xml b/app/src/main/res/xml/pref_config_backup.xml
index 6a57dcc87..06085208d 100644
--- a/app/src/main/res/xml/pref_config_backup.xml
+++ b/app/src/main/res/xml/pref_config_backup.xml
@@ -27,11 +27,9 @@
             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="@string/mkdirs"
-            android:summary="@string/mkdirs_description"
+        <io.legado.app.ui.widget.prefs.EditTextPreference
+            android:key="webDavDir"
+            android:title="@string/sub_dir"
             app:allowDividerAbove="false"
             app:allowDividerBelow="false"
             app:iconSpaceReserved="false" />