diff --git a/app/src/main/java/io/legado/app/model/webBook/SearchModel.kt b/app/src/main/java/io/legado/app/model/webBook/SearchModel.kt
index 0e92d9acd..c8cc3b82f 100644
--- a/app/src/main/java/io/legado/app/model/webBook/SearchModel.kt
+++ b/app/src/main/java/io/legado/app/model/webBook/SearchModel.kt
@@ -8,7 +8,6 @@ import io.legado.app.data.entities.SearchBook
 import io.legado.app.help.config.AppConfig
 import io.legado.app.help.coroutine.CompositeCoroutine
 import io.legado.app.utils.getPrefBoolean
-import io.legado.app.utils.getPrefString
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.ExecutorCoroutineDispatcher
 import kotlinx.coroutines.asCoroutineDispatcher
@@ -60,7 +59,7 @@ class SearchModel(private val scope: CoroutineScope) {
             initSearchPool()
             mSearchId = searchId
             searchPage = 1
-            val searchGroup = appCtx.getPrefString("searchGroup") ?: ""
+            val searchGroup = AppConfig.searchGroup
             bookSourceList.clear()
             searchBooks.clear()
             callBack?.onSearchSuccess(searchBooks)
@@ -69,6 +68,7 @@ class SearchModel(private val scope: CoroutineScope) {
             } else {
                 val sources = appDb.bookSourceDao.getEnabledByGroup(searchGroup)
                 if (sources.isEmpty()) {
+                    AppConfig.searchGroup = ""
                     bookSourceList.addAll(appDb.bookSourceDao.allEnabled)
                 } else {
                     bookSourceList.addAll(sources)
diff --git a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
index d7bb6354b..ba49a97f4 100644
--- a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
@@ -298,7 +298,7 @@ class ChangeBookSourceDialog() : BaseDialogFragment(R.layout.dialog_book_change_
      */
     private fun upGroupMenu() {
         val menu: Menu = binding.toolBar.menu
-        val selectedGroup = getPrefString("searchGroup")
+        val selectedGroup = AppConfig.searchGroup
         menu.removeGroup(R.id.source_group)
         val allItem = menu.add(R.id.source_group, Menu.NONE, Menu.NONE, R.string.all_source)
         var hasSelectedGroup = false
diff --git a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt
index 4ddf26683..481a30437 100644
--- a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt
@@ -331,7 +331,7 @@ class ChangeChapterSourceDialog() : BaseDialogFragment(R.layout.dialog_chapter_c
      */
     private fun upGroupMenu() {
         val menu: Menu = binding.toolBar.menu
-        val selectedGroup = getPrefString("searchGroup")
+        val selectedGroup = AppConfig.searchGroup
         menu.removeGroup(R.id.source_group)
         val allItem = menu.add(R.id.source_group, Menu.NONE, Menu.NONE, R.string.all_source)
         var hasSelectedGroup = false
diff --git a/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt b/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
index edd79ab82..bb6463608 100644
--- a/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
@@ -22,6 +22,7 @@ import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.SearchKeyword
 import io.legado.app.databinding.ActivityBookSearchBinding
+import io.legado.app.help.config.AppConfig
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.theme.*
 import io.legado.app.ui.book.info.BookInfoActivity
@@ -66,14 +67,14 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
     private var groups = linkedSetOf<String>()
     private val searchFinishCallback: (isEmpty: Boolean) -> Unit = {
         if (it) {
-            val searchGroup = getPrefString("searchGroup")
-            if (!searchGroup.isNullOrEmpty()) {
+            val searchGroup = AppConfig.searchGroup
+            if (searchGroup.isNotEmpty()) {
                 launch {
                     alert("搜索结果为空") {
                         setMessage("${searchGroup}分组搜索结果为空,是否切换到全部分组")
                         cancelButton()
                         okButton {
-                            putPrefString("searchGroup", "")
+                            AppConfig.searchGroup = ""
                             viewModel.searchKey = ""
                             viewModel.search(searchView.query.toString())
                         }
@@ -123,9 +124,9 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
             else -> if (item.groupId == R.id.source_group) {
                 item.isChecked = true
                 if (item.title.toString() == getString(R.string.all_source)) {
-                    putPrefString("searchGroup", "")
+                    AppConfig.searchGroup = ""
                 } else {
-                    putPrefString("searchGroup", item.title.toString())
+                    AppConfig.searchGroup = item.title.toString()
                 }
                 searchView.query?.toString()?.trim()?.let {
                     searchView.setQuery(it, true)
@@ -280,7 +281,7 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
      * 更新分组菜单
      */
     private fun upGroupMenu() = menu?.let { menu ->
-        val selectedGroup = getPrefString("searchGroup")
+        val selectedGroup = AppConfig.searchGroup
         menu.removeGroup(R.id.source_group)
         val allItem = menu.add(R.id.source_group, Menu.NONE, Menu.NONE, R.string.all_source)
         var hasSelectedGroup = false