diff --git a/app/src/main/assets/help/webDavHelp.md b/app/src/main/assets/help/webDavHelp.md
index 94e0a9c3d..b1e2a3285 100644
--- a/app/src/main/assets/help/webDavHelp.md
+++ b/app/src/main/assets/help/webDavHelp.md
@@ -1 +1,14 @@
-# WebDav备份教程
\ No newline at end of file
+# WebDav备份教程
+
+### 阅读支持云备份,采用WebDav协议,所有支持WebDav的云盘都可以,建议采用坚果云,每月免费1G流量,用来备份阅读足够了,下面就采用坚果云来讲解配置步骤.
+
+1. 打开坚果云网站 https://www.jianguoyun.com/d/home#/
+2. 如果没有注册过坚果云先注册一下
+3. 登录坚果云
+4. 右上角用户名点开点账户信息
+5. 点击安全选项
+6. 在第三方管理里添加应用
+7. 将应用示例里的服务器地址,用户名,和密码填到阅读的WebDav设置里
+8. 阅读的WebDav配置在我的-备份与恢复,创建子文件夹选项保持默认即可
+9. 设置完成后手动执行一下备份,看看是否成功
+10. 恢复时选择想要恢复的备份文件
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/help/LocalConfig.kt b/app/src/main/java/io/legado/app/help/LocalConfig.kt
index aee7a8665..858582fa6 100644
--- a/app/src/main/java/io/legado/app/help/LocalConfig.kt
+++ b/app/src/main/java/io/legado/app/help/LocalConfig.kt
@@ -20,4 +20,11 @@ object LocalConfig {
         set(value) {
             localConfig.edit { putBoolean("firstRead", value) }
         }
+
+    var isFirstOpenBackup: Boolean
+        get() = localConfig.getBoolean("firstBackup", true)
+        set(value) {
+            localConfig.edit { putBoolean("firstBackup", value) }
+        }
+
 }
\ No newline at end of file
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 097148736..887efb63f 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
@@ -11,11 +11,13 @@ import androidx.preference.Preference
 import io.legado.app.R
 import io.legado.app.base.BasePreferenceFragment
 import io.legado.app.constant.PreferKey
+import io.legado.app.help.LocalConfig
 import io.legado.app.help.storage.Restore
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.theme.ATH
 import io.legado.app.lib.theme.accentColor
 import io.legado.app.ui.filepicker.FilePickerDialog
+import io.legado.app.ui.widget.dialog.TextDialog
 import io.legado.app.utils.applyTint
 import io.legado.app.utils.getPrefString
 
@@ -55,6 +57,11 @@ class BackupConfigFragment : BasePreferenceFragment(),
         super.onViewCreated(view, savedInstanceState)
         preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
         ATH.applyEdgeEffectColor(listView)
+        if (LocalConfig.isFirstOpenBackup) {
+            val text = String(requireContext().assets.open("help/webDavHelp.md").readBytes())
+            TextDialog.show(childFragmentManager, text, TextDialog.MD)
+            LocalConfig.isFirstOpen = false
+        }
     }
 
     override fun onDestroy() {