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 2cf9cae3d..ae44ddaad 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
@@ -76,6 +76,9 @@ class SearchActivity : VMBaseActivity<SearchViewModel>(R.layout.activity_book_se
                     !getPrefBoolean(PreferKey.precisionSearch)
                 )
                 precisionSearchMenuItem?.isChecked = getPrefBoolean(PreferKey.precisionSearch)
+                search_view.query.toString().trim()?.let {
+                    search_view.setQuery(it, true)
+                }
             }
             R.id.menu_source_manage -> startActivity<BookSourceActivity>()
             else -> if (item.groupId == R.id.source_group) {
@@ -85,6 +88,9 @@ class SearchActivity : VMBaseActivity<SearchViewModel>(R.layout.activity_book_se
                 } else {
                     putPrefString("searchGroup", item.title.toString())
                 }
+                search_view.query.toString().trim()?.let {
+                    search_view.setQuery(it, true)
+                }
             }
         }
         return super.onCompatOptionsItemSelected(item)
diff --git a/app/src/main/java/io/legado/app/ui/book/search/SearchViewModel.kt b/app/src/main/java/io/legado/app/ui/book/search/SearchViewModel.kt
index 6bca4a5f4..1a695cccd 100644
--- a/app/src/main/java/io/legado/app/ui/book/search/SearchViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/search/SearchViewModel.kt
@@ -72,8 +72,8 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
         val books = arrayListOf<SearchBook>()
         searchBooks.forEach { searchBook ->
             if (context.getPrefBoolean(PreferKey.precisionSearch)) {
-                if (searchBook.name.contains(searchKey)
-                    || searchBook.author.contains(searchKey)
+                if (searchBook.name.equals(searchKey, true)
+                    || searchBook.author.equals(searchKey, true)
                 ) books.add(searchBook)
             } else
                 books.add(searchBook)