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 671736dc8..95dd84d51 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
@@ -101,6 +101,7 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
                 App.db.bookDao().observeByGroup(groupId)
             }
         booksLiveData?.observe(this, Observer {
+            adapter.selectedBooks.clear()
             adapter.setItems(it)
             upSelectCount()
         })