diff --git a/app/src/main/java/io/legado/app/data/dao/BookDao.kt b/app/src/main/java/io/legado/app/data/dao/BookDao.kt
index 9aaf5d3fe..a4ad1d736 100644
--- a/app/src/main/java/io/legado/app/data/dao/BookDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/BookDao.kt
@@ -22,7 +22,7 @@ interface BookDao {
     fun observeLocalUri(): LiveData<List<String>>
 
     @Query("SELECT * FROM books WHERE (`group` & :group) > 0")
-    fun observeByGroup(group: Int): LiveData<List<Book>>
+    fun observeByGroup(group: Long): LiveData<List<Book>>
 
     @Query("select * from books where (SELECT sum(groupId) FROM book_groups) & `group` = 0")
     fun observeNoGroup(): LiveData<List<Book>>
@@ -34,7 +34,7 @@ interface BookDao {
     fun liveDataSearch(key: String): LiveData<List<Book>>
 
     @Query("SELECT * FROM books WHERE (`group` & :group) > 0")
-    fun getBooksByGroup(group: Int): List<Book>
+    fun getBooksByGroup(group: Long): List<Book>
 
     @Query("SELECT * FROM books WHERE `name` in (:names)")
     fun findByName(vararg names: String): List<Book>
@@ -82,7 +82,7 @@ interface BookDao {
     fun upProgress(bookUrl: String, pos: Int)
 
     @Query("update books set `group` = :newGroupId where `group` = :oldGroupId")
-    fun upGroup(oldGroupId: Int, newGroupId: Int)
+    fun upGroup(oldGroupId: Long, newGroupId: Long)
 
     @get:Query("select bookUrl, tocUrl, origin, originName, durChapterIndex, durChapterPos, durChapterTime, durChapterTitle from books")
     val allBookProgress: List<BookProgress>
diff --git a/app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt b/app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt
index c262d60e1..5f56d623f 100644
--- a/app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt
@@ -8,13 +8,16 @@ import io.legado.app.data.entities.BookGroup
 interface BookGroupDao {
 
     @Query("select * from book_groups where groupId = :id")
-    fun getByID(id: Int): BookGroup?
+    fun getByID(id: Long): BookGroup?
+
+    @Query("select * from book_groups where groupName = :groupName")
+    fun getByName(groupName: String): BookGroup?
 
     @Query("SELECT * FROM book_groups ORDER BY `order`")
     fun liveDataAll(): LiveData<List<BookGroup>>
 
     @get:Query("SELECT sum(groupId) FROM book_groups")
-    val idsSum: Int
+    val idsSum: Long
 
     @get:Query("SELECT MAX(`order`) FROM book_groups")
     val maxOrder: Int
diff --git a/app/src/main/java/io/legado/app/data/entities/Book.kt b/app/src/main/java/io/legado/app/data/entities/Book.kt
index 62926b3b4..64748355a 100644
--- a/app/src/main/java/io/legado/app/data/entities/Book.kt
+++ b/app/src/main/java/io/legado/app/data/entities/Book.kt
@@ -39,7 +39,7 @@ data class Book(
     var customIntro: String? = null,            // 简介内容(用户修改)
     var charset: String? = null,                // 自定义字符集名称(仅适用于本地书籍)
     var type: Int = 0,                          // 0:text 1:audio
-    var group: Int = 0,                         // 自定义分组索引号
+    var group: Long = 0,                         // 自定义分组索引号
     var latestChapterTitle: String? = null,     // 最新章节标题
     var latestChapterTime: Long = System.currentTimeMillis(),            // 最新章节标题更新时间
     var lastCheckTime: Long = System.currentTimeMillis(),                // 最近一次更新书籍信息的时间
diff --git a/app/src/main/java/io/legado/app/data/entities/BookGroup.kt b/app/src/main/java/io/legado/app/data/entities/BookGroup.kt
index 9cd74b331..2d2c68698 100644
--- a/app/src/main/java/io/legado/app/data/entities/BookGroup.kt
+++ b/app/src/main/java/io/legado/app/data/entities/BookGroup.kt
@@ -9,7 +9,7 @@ import kotlinx.android.parcel.Parcelize
 @Entity(tableName = "book_groups")
 data class BookGroup(
     @PrimaryKey
-    val groupId: Int = 0b1,
+    val groupId: Long = 0b1,
     var groupName: String,
     var order: Int = 0
 ) : Parcelable
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookActivity.kt
index f23a2008c..76ac7c89a 100644
--- a/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookActivity.kt
@@ -41,10 +41,10 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
     private var groupLiveData: LiveData<List<BookGroup>>? = null
     private var booksLiveData: LiveData<List<Book>>? = null
     private var menu: Menu? = null
-    private var groupId: Int = -1
+    private var groupId: Long = -1
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        groupId = intent.getIntExtra("groupId", -1)
+        groupId = intent.getLongExtra("groupId", -1)
         title_bar.subtitle = intent.getStringExtra("groupName") ?: getString(R.string.all)
         initView()
         initGroupData()
@@ -85,7 +85,7 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
             }
 
             override fun onClickMainAction() {
-                selectGroup(0, groupRequestCode)
+                selectGroup(groupRequestCode, 0)
             }
         })
     }
@@ -149,7 +149,7 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
             }
             else -> if (item.groupId == R.id.menu_group) {
                 title_bar.subtitle = item.title
-                groupId = item.itemId
+                groupId = App.db.bookGroupDao().getByName(item.title.toString())?.groupId ?: 0
                 initBookData()
             }
         }
@@ -167,7 +167,7 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
                 viewModel.upCanUpdate(adapter.selectedBooks(), true)
             R.id.menu_update_disable ->
                 viewModel.upCanUpdate(adapter.selectedBooks(), false)
-            R.id.menu_add_to_group -> selectGroup(0, addToGroupRequestCode)
+            R.id.menu_add_to_group -> selectGroup(addToGroupRequestCode, 0)
         }
         return false
     }
@@ -176,16 +176,16 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
         menu?.findItem(R.id.menu_book_group)?.subMenu?.let { subMenu ->
             subMenu.removeGroup(R.id.menu_group)
             groupList.forEach { bookGroup ->
-                subMenu.add(R.id.menu_group, bookGroup.groupId, Menu.NONE, bookGroup.groupName)
+                subMenu.add(R.id.menu_group, bookGroup.order, Menu.NONE, bookGroup.groupName)
             }
         }
     }
 
-    override fun selectGroup(groupId: Int, requestCode: Int) {
+    override fun selectGroup(requestCode: Int, groupId: Long) {
         GroupSelectDialog.show(supportFragmentManager, groupId, requestCode)
     }
 
-    override fun upGroup(requestCode: Int, groupId: Int) {
+    override fun upGroup(requestCode: Int, groupId: Long) {
         when (requestCode) {
             groupRequestCode -> {
                 val books = arrayListOf<Book>()
diff --git a/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookAdapter.kt b/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookAdapter.kt
index 84e070259..762e18d1d 100644
--- a/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookAdapter.kt
+++ b/app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookAdapter.kt
@@ -101,13 +101,13 @@ class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
             tv_group.onClick {
                 getItem(holder.layoutPosition)?.let {
                     actionItem = it
-                    callBack.selectGroup(it.group, groupRequestCode)
+                    callBack.selectGroup(groupRequestCode, it.group)
                 }
             }
         }
     }
 
-    private fun getGroupList(groupId: Int): List<String> {
+    private fun getGroupList(groupId: Long): List<String> {
         val groupNames = arrayListOf<String>()
         callBack.groupList.forEach {
             if (it.groupId and groupId > 0) {
@@ -117,7 +117,7 @@ class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
         return groupNames
     }
 
-    private fun getGroupName(groupId: Int): String {
+    private fun getGroupName(groupId: Long): String {
         val groupNames = getGroupList(groupId)
         if (groupNames.isEmpty()) {
             return ""
@@ -159,6 +159,6 @@ class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
         fun upSelectCount()
         fun updateBook(vararg book: Book)
         fun deleteBook(book: Book)
-        fun selectGroup(groupId: Int, requestCode: Int)
+        fun selectGroup(requestCode: Int, groupId: Long)
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt b/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt
index 6dbbf7589..0ae61f349 100644
--- a/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt
@@ -43,13 +43,13 @@ class CacheActivity : VMBaseActivity<CacheViewModel>(R.layout.activity_download)
     private var menu: Menu? = null
     private var exportPosition = -1
     private val groupList: ArrayList<BookGroup> = arrayListOf()
-    private var groupId: Int = -1
+    private var groupId: Long = -1
 
     override val viewModel: CacheViewModel
         get() = getViewModel(CacheViewModel::class.java)
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        groupId = intent.getIntExtra("groupId", -1)
+        groupId = intent.getLongExtra("groupId", -1)
         title_bar.subtitle = intent.getStringExtra("groupName") ?: getString(R.string.all)
         initRecyclerView()
         initGroupData()
@@ -71,7 +71,7 @@ class CacheActivity : VMBaseActivity<CacheViewModel>(R.layout.activity_download)
         menu?.findItem(R.id.menu_book_group)?.subMenu?.let { subMenu ->
             subMenu.removeGroup(R.id.menu_group)
             groupList.forEach { bookGroup ->
-                subMenu.add(R.id.menu_group, bookGroup.groupId, Menu.NONE, bookGroup.groupName)
+                subMenu.add(R.id.menu_group, bookGroup.order, Menu.NONE, bookGroup.groupName)
             }
         }
     }
@@ -107,7 +107,7 @@ class CacheActivity : VMBaseActivity<CacheViewModel>(R.layout.activity_download)
             }
             else -> if (item.groupId == R.id.menu_group) {
                 title_bar.subtitle = item.title
-                groupId = item.itemId
+                groupId = App.db.bookGroupDao().getByName(item.title.toString())?.groupId ?: 0
                 initBookData()
             }
         }
diff --git a/app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt b/app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt
index 91732b149..4cc5333b9 100644
--- a/app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt
@@ -44,10 +44,10 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
     companion object {
         const val tag = "groupSelectDialog"
 
-        fun show(manager: FragmentManager, groupId: Int, requestCode: Int = -1) {
+        fun show(manager: FragmentManager, groupId: Long, requestCode: Int = -1) {
             val fragment = GroupSelectDialog().apply {
                 val bundle = Bundle()
-                bundle.putInt("groupId", groupId)
+                bundle.putLong("groupId", groupId)
                 bundle.putInt("requestCode", requestCode)
                 arguments = bundle
             }
@@ -59,7 +59,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
     private lateinit var viewModel: GroupViewModel
     private lateinit var adapter: GroupAdapter
     private var callBack: CallBack? = null
-    private var groupId = 0
+    private var groupId: Long = 0
 
     override fun onStart() {
         super.onStart()
@@ -81,7 +81,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
         tool_bar.setBackgroundColor(primaryColor)
         callBack = activity as? CallBack
         arguments?.let {
-            groupId = it.getInt("groupId")
+            groupId = it.getLong("groupId")
             requestCode = it.getInt("requestCode", -1)
         }
         initView()
@@ -214,6 +214,6 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
     }
 
     interface CallBack {
-        fun upGroup(requestCode: Int, groupId: Int)
+        fun upGroup(requestCode: Int, groupId: Long)
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/book/group/GroupViewModel.kt b/app/src/main/java/io/legado/app/ui/book/group/GroupViewModel.kt
index 23555015f..2b55c6932 100644
--- a/app/src/main/java/io/legado/app/ui/book/group/GroupViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/group/GroupViewModel.kt
@@ -9,9 +9,9 @@ class GroupViewModel(application: Application) : BaseViewModel(application) {
 
     fun addGroup(groupName: String) {
         execute {
-            var id = 1
+            var id = 1L
             val idsSum = App.db.bookGroupDao().idsSum
-            while (id and idsSum != 0) {
+            while (id and idsSum != 0L) {
                 id = id.shl(1)
             }
             val bookGroup = BookGroup(
diff --git a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
index 011def56a..18d9c06f7 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
@@ -182,7 +182,7 @@ class BookInfoActivity :
         }
     }
 
-    private fun upGroup(groupId: Int) {
+    private fun upGroup(groupId: Long) {
         viewModel.loadGroup(groupId) {
             if (it.isNullOrEmpty()) {
                 tv_group.text = getString(R.string.group_s, getString(R.string.no_group))
@@ -350,7 +350,7 @@ class BookInfoActivity :
         return viewModel.durChapterIndex
     }
 
-    override fun upGroup(requestCode: Int, groupId: Int) {
+    override fun upGroup(requestCode: Int, groupId: Long) {
         upGroup(groupId)
         viewModel.bookData.value?.group = groupId
         if (viewModel.inBookshelf) {
diff --git a/app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt b/app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt
index fb2a16bf8..aa3c12557 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt
@@ -117,7 +117,7 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
-    fun loadGroup(groupId: Int, success: ((groupNames: String?) -> Unit)) {
+    fun loadGroup(groupId: Long, success: ((groupNames: String?) -> Unit)) {
         execute {
             val groupNames = arrayListOf<String>()
             App.db.bookGroupDao().all.forEach {
diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt b/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt
index 542f5a13f..af82c14f1 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt
@@ -54,7 +54,7 @@ class BookshelfFragment : VMBaseFragment<BookshelfViewModel>(R.layout.fragment_b
     private var bookGroupLiveData: LiveData<List<BookGroup>>? = null
     private var noGroupLiveData: LiveData<Int>? = null
     private val bookGroups = mutableListOf<BookGroup>()
-    private val fragmentMap = hashMapOf<Int, BooksFragment>()
+    private val fragmentMap = hashMapOf<Long, BooksFragment>()
     private var showGroupNone = false
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt b/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt
index ae1287842..298b84cca 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt
@@ -65,10 +65,10 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
     fun checkGroup(groups: List<BookGroup>) {
         execute {
             groups.forEach { group ->
-                if (group.groupId and (group.groupId - 1) != 0) {
-                    var id = 1
+                if (group.groupId and (group.groupId - 1) != 0L) {
+                    var id = 1L
                     val idsSum = App.db.bookGroupDao().idsSum
-                    while (id and idsSum != 0) {
+                    while (id and idsSum != 0L) {
                         id = id.shl(1)
                     }
                     App.db.bookGroupDao().delete(group)
diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt b/app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt
index ebbe310e8..644f7683d 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt
@@ -35,11 +35,11 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
     BaseBooksAdapter.CallBack {
 
     companion object {
-        fun newInstance(position: Int, groupId: Int): BooksFragment {
+        fun newInstance(position: Int, groupId: Long): BooksFragment {
             return BooksFragment().apply {
                 val bundle = Bundle()
                 bundle.putInt("position", position)
-                bundle.putInt("groupId", groupId)
+                bundle.putLong("groupId", groupId)
                 arguments = bundle
             }
         }
@@ -50,12 +50,12 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
     private lateinit var booksAdapter: BaseBooksAdapter
     private var bookshelfLiveData: LiveData<List<Book>>? = null
     private var position = 0
-    private var groupId = -1
+    private var groupId = -1L
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
         arguments?.let {
             position = it.getInt("position", 0)
-            groupId = it.getInt("groupId", -1)
+            groupId = it.getLong("groupId", -1)
         }
         initRecyclerView()
         upRecyclerData()