diff --git a/app/src/main/java/io/legado/app/help/AppWebDav.kt b/app/src/main/java/io/legado/app/help/AppWebDav.kt
index 4b4422629..07f4d6d3e 100644
--- a/app/src/main/java/io/legado/app/help/AppWebDav.kt
+++ b/app/src/main/java/io/legado/app/help/AppWebDav.kt
@@ -191,9 +191,12 @@ object AppWebDav {
     /**
      * 下载背景图片
      */
-    suspend fun downBgs(fileNames: String) {
+    suspend fun downBgs() {
         val authorization = authorization ?: return
         if (!NetworkUtils.isAvailable()) return
+        val bgWebDavFiles = getAllBgWebDavFiles().getOrThrow()
+            .map { it.displayName }
+            .toSet()
     }
 
     suspend fun exportWebDav(byteArray: ByteArray, fileName: String) {
diff --git a/app/src/main/java/io/legado/app/help/config/ReadBookConfig.kt b/app/src/main/java/io/legado/app/help/config/ReadBookConfig.kt
index 018e0632e..945536352 100644
--- a/app/src/main/java/io/legado/app/help/config/ReadBookConfig.kt
+++ b/app/src/main/java/io/legado/app/help/config/ReadBookConfig.kt
@@ -131,6 +131,22 @@ object ReadBookConfig {
         }
     }
 
+    fun getAllPicBgStr(): ArrayList<String> {
+        val list = arrayListOf<String>()
+        configList.forEach {
+            if (it.bgType == 2) {
+                list.add(it.bgStr)
+            }
+            if (it.bgTypeNight == 2) {
+                list.add(it.bgStrNight)
+            }
+            if (it.bgTypeEInk == 2) {
+                list.add(it.bgStrEInk)
+            }
+        }
+        return list
+    }
+
     fun deleteDur(): Boolean {
         if (configList.size > 5) {
             configList.removeAt(styleSelect)
diff --git a/app/src/main/java/io/legado/app/help/storage/Backup.kt b/app/src/main/java/io/legado/app/help/storage/Backup.kt
index 17c229dd3..76fec8f83 100644
--- a/app/src/main/java/io/legado/app/help/storage/Backup.kt
+++ b/app/src/main/java/io/legado/app/help/storage/Backup.kt
@@ -190,8 +190,14 @@ object Backup {
         FileUtils.delete(backupPath)
         FileUtils.delete(zipFilePath)
         coroutineContext.ensureActive()
-        appCtx.externalFiles.getFile("bg").listFiles()?.let {
-            AppWebDav.upBgs(it)
+        ReadBookConfig.getAllPicBgStr().map {
+            if (it.contains(File.separator)) {
+                File(it)
+            } else {
+                appCtx.externalFiles.getFile("bg", it)
+            }
+        }.let {
+            AppWebDav.upBgs(it.toTypedArray())
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/help/storage/Restore.kt b/app/src/main/java/io/legado/app/help/storage/Restore.kt
index 5ebf0b481..ab5eeba1c 100644
--- a/app/src/main/java/io/legado/app/help/storage/Restore.kt
+++ b/app/src/main/java/io/legado/app/help/storage/Restore.kt
@@ -7,7 +7,6 @@ import io.legado.app.BuildConfig
 import io.legado.app.R
 import io.legado.app.constant.AppConst.androidId
 import io.legado.app.constant.AppLog
-import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
@@ -25,6 +24,7 @@ import io.legado.app.data.entities.RuleSub
 import io.legado.app.data.entities.SearchKeyword
 import io.legado.app.data.entities.Server
 import io.legado.app.data.entities.TxtTocRule
+import io.legado.app.help.AppWebDav
 import io.legado.app.help.DirectLinkUpload
 import io.legado.app.help.LauncherIconHelp
 import io.legado.app.help.book.isLocal
@@ -46,7 +46,6 @@ import io.legado.app.utils.getSharedPreferences
 import io.legado.app.utils.isContentScheme
 import io.legado.app.utils.isJsonArray
 import io.legado.app.utils.openInputStream
-import io.legado.app.utils.postEvent
 import io.legado.app.utils.toastOnUi
 import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.delay
@@ -213,6 +212,7 @@ object Restore {
                 AppLog.put("恢复阅读界面出错\n${it.localizedMessage}", it)
             }
         }
+        AppWebDav.downBgs()
         appCtx.getSharedPreferences(path, "config")?.all?.let { map ->
             val edit = appCtx.defaultSharedPreferences.edit()