diff --git a/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt b/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt
index 0d3e6e575..999898598 100644
--- a/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt
@@ -1,8 +1,7 @@
 package io.legado.app.data.dao
 
 import androidx.lifecycle.LiveData
-import androidx.room.Dao
-import androidx.room.Query
+import androidx.room.*
 import io.legado.app.data.entities.RssSource
 
 @Dao
@@ -16,4 +15,13 @@ interface RssSourceDao {
 
     @Query("SELECT * FROM rssSources where enabled = 1")
     fun liveEnabled(): LiveData<List<RssSource>>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insert(vararg rssSource: RssSource)
+
+    @Update
+    fun update(vararg rssSource: RssSource)
+
+    @Query("delete from rssSources where sourceUrl = :sourceUrl")
+    fun delete(sourceUrl: String)
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/help/BookHelp.kt b/app/src/main/java/io/legado/app/help/BookHelp.kt
index d32e4d077..dd68c455b 100644
--- a/app/src/main/java/io/legado/app/help/BookHelp.kt
+++ b/app/src/main/java/io/legado/app/help/BookHelp.kt
@@ -7,10 +7,7 @@ import io.legado.app.data.entities.ReplaceRule
 import io.legado.app.utils.getPrefInt
 import io.legado.app.utils.getPrefString
 import io.legado.app.utils.similarity
-import java.io.BufferedWriter
 import java.io.File
-import java.io.FileWriter
-import java.io.IOException
 import kotlin.math.max
 import kotlin.math.min
 
@@ -29,21 +26,10 @@ object BookHelp {
     }
 
     fun saveContent(book: Book, bookChapter: BookChapter, content: String) {
-        if (content.isEmpty()) {
-            return
-        }
+        if (content.isEmpty()) return
         val filePath = getChapterPath(book, bookChapter)
         val file = FileHelp.getFile(filePath)
-        //获取流并存储
-        try {
-            BufferedWriter(FileWriter(file)).use { writer ->
-                writer.write(content)
-                writer.flush()
-            }
-        } catch (e: IOException) {
-            e.printStackTrace()
-        }
-
+        file.writeText(content)
     }
 
     fun hasContent(book: Book, bookChapter: BookChapter): Boolean {
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 fe89fb3e1..ac381ec52 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
@@ -56,7 +56,7 @@ object Backup {
 
     private fun backupRssSource(path: String) {
         val json = GSON.toJson(App.db.rssSourceDao().all)
-        val file = FileHelp.getFile(path + File.separator + "cssSource.json")
+        val file = FileHelp.getFile(path + File.separator + "rssSource.json")
         file.writeText(json)
     }
 
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 335dd2497..43437a46b 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
@@ -2,14 +2,20 @@ package io.legado.app.help.storage
 
 import android.content.Context
 import android.util.Log
+import androidx.appcompat.app.AppCompatActivity
 import com.jayway.jsonpath.Configuration
 import com.jayway.jsonpath.JsonPath
 import com.jayway.jsonpath.Option
 import io.legado.app.App
+import io.legado.app.R
 import io.legado.app.constant.AppConst
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookSource
 import io.legado.app.data.entities.ReplaceRule
+import io.legado.app.data.entities.RssSource
+import io.legado.app.help.FileHelp
+import io.legado.app.help.permission.Permissions
+import io.legado.app.help.permission.PermissionsCompat
 import io.legado.app.utils.*
 import org.jetbrains.anko.doAsync
 import org.jetbrains.anko.toast
@@ -23,12 +29,55 @@ object Restore {
             .build()
     )
 
-    fun restore() {
-
+    fun restore(activity: AppCompatActivity) {
+        PermissionsCompat.Builder(activity)
+            .addPermissions(*Permissions.Group.STORAGE)
+            .rationale(R.string.tip_perm_request_storage)
+            .onGranted {
+                val path =
+                    FileUtils.getSdCardPath() + File.separator + "YueDu" + File.separator + "legadoBackUp"
+                restore(path)
+            }
+            .request()
     }
 
-    fun importFromGithub() {
-
+    fun restore(path: String) {
+        try {
+            val file = FileHelp.getFile(path + File.separator + "bookshelf.json")
+            val json = file.readText()
+            GSON.fromJsonArray<Book>(json)?.let {
+                App.db.bookDao().insert(*it.toTypedArray())
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        try {
+            val file = FileHelp.getFile(path + File.separator + "bookSource.json")
+            val json = file.readText()
+            GSON.fromJsonArray<BookSource>(json)?.let {
+                App.db.bookSourceDao().insert(*it.toTypedArray())
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        try {
+            val file = FileHelp.getFile(path + File.separator + "rssSource.json")
+            val json = file.readText()
+            GSON.fromJsonArray<RssSource>(json)?.let {
+                App.db.rssSourceDao().insert(*it.toTypedArray())
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        try {
+            val file = FileHelp.getFile(path + File.separator + "replaceRule.json")
+            val json = file.readText()
+            GSON.fromJsonArray<ReplaceRule>(json)?.let {
+                App.db.replaceRuleDao().insert(*it.toTypedArray())
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
     }
 
     fun importYueDuData(context: Context) {