diff --git a/app/src/main/java/io/legado/app/constant/PreferKey.kt b/app/src/main/java/io/legado/app/constant/PreferKey.kt
index 67732823a..cadb256e0 100644
--- a/app/src/main/java/io/legado/app/constant/PreferKey.kt
+++ b/app/src/main/java/io/legado/app/constant/PreferKey.kt
@@ -28,6 +28,7 @@ object PreferKey {
     const val showRss = "showRss"
     const val bookshelfLayout = "bookshelfLayout"
     const val bookshelfSort = "bookshelfSort"
+    const val bookExportFileName = "bookExportFileName"
     const val recordLog = "recordLog"
     const val processText = "process_text"
     const val cleanCache = "cleanCache"
diff --git a/app/src/main/java/io/legado/app/help/AppConfig.kt b/app/src/main/java/io/legado/app/help/AppConfig.kt
index 218efbf7a..4e90f74f9 100644
--- a/app/src/main/java/io/legado/app/help/AppConfig.kt
+++ b/app/src/main/java/io/legado/app/help/AppConfig.kt
@@ -96,6 +96,12 @@ object AppConfig : SharedPreferences.OnSharedPreferenceChangeListener {
             appCtx.putPrefInt(PreferKey.bookGroupStyle, value)
         }
 
+    var bookExportFileName: String?
+        get() = appCtx.getPrefString(PreferKey.bookExportFileName)
+        set(value) {
+            appCtx.putPrefString(PreferKey.bookExportFileName, value)
+        }
+
     var backupPath: String?
         get() = appCtx.getPrefString(PreferKey.backupPath)
         set(value) {
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
index f704c7f24..57b3d25a1 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
@@ -650,9 +650,7 @@ class AnalyzeRule(val ruleData: RuleDataInterface) : JsExtensions {
         bindings["title"] = chapter?.title
         bindings["src"] = content
         bindings["nextChapterUrl"] = nextChapterUrl
-        return runBlocking {
-            SCRIPT_ENGINE.eval(jsStr, bindings)
-        }
+        return SCRIPT_ENGINE.eval(jsStr, bindings)
     }
 
     /**
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 fe70f9be6..7016927b5 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
@@ -127,6 +127,7 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
                 exportPosition = -1
                 selectExportFolder()
             }
+            R.id.menu_export_file_name -> alertExportFileName()
             R.id.menu_export_type -> showExportTypeConfig()
             R.id.menu_export_charset -> showCharsetConfig()
             R.id.menu_log ->
@@ -294,6 +295,19 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
         }
     }
 
+    private fun alertExportFileName() {
+        alert(R.string.export_file_name) {
+            val alertBinding = DialogEditTextBinding.inflate(layoutInflater).apply {
+                editView.setText(AppConfig.bookExportFileName)
+            }
+            customView { alertBinding.root }
+            okButton {
+                AppConfig.bookExportFileName = alertBinding.editView.text?.toString()
+            }
+            cancelButton()
+        }.show()
+    }
+
     private fun showExportTypeConfig() {
         selector(R.string.export_type, arrayListOf("txt", "epub")) { _, i ->
             AppConfig.exportType = i
diff --git a/app/src/main/java/io/legado/app/ui/book/cache/CacheViewModel.kt b/app/src/main/java/io/legado/app/ui/book/cache/CacheViewModel.kt
index 819686dcf..fab7802b6 100644
--- a/app/src/main/java/io/legado/app/ui/book/cache/CacheViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/cache/CacheViewModel.kt
@@ -10,6 +10,7 @@ import com.bumptech.glide.request.target.CustomTarget
 import com.bumptech.glide.request.transition.Transition
 import io.legado.app.R
 import io.legado.app.base.BaseViewModel
+import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppPattern
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
@@ -26,10 +27,21 @@ import java.io.ByteArrayOutputStream
 import java.io.File
 import java.io.FileOutputStream
 import java.nio.charset.Charset
+import javax.script.SimpleBindings
 
 
 class CacheViewModel(application: Application) : BaseViewModel(application) {
 
+    fun getExportFileName(book: Book): String {
+        val jsStr = AppConfig.bookExportFileName
+        if (jsStr.isNullOrBlank()) {
+            return "${book.name} by ${book.author}"
+        }
+        val bindings = SimpleBindings()
+        bindings["name"] = book.name
+        bindings["author"] = book.author
+        return AppConst.SCRIPT_ENGINE.eval(jsStr, bindings).toString()
+    }
 
     fun export(path: String, book: Book, finally: (msg: String) -> Unit) {
         execute {
@@ -50,7 +62,7 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
 
     @Suppress("BlockingMethodInNonBlockingContext")
     private suspend fun export(doc: DocumentFile, book: Book) {
-        val filename = "${book.name} by ${book.author}.txt"
+        val filename = "${getExportFileName(book)}.txt"
         DocumentUtils.delete(doc, filename)
         DocumentUtils.createFileIfNotExist(doc, filename)?.let { bookDoc ->
             val stringBuilder = StringBuilder()
@@ -80,7 +92,7 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
     }
 
     private suspend fun export(file: File, book: Book) {
-        val filename = "${book.name} by ${book.author}.txt"
+        val filename = "${getExportFileName(book)}.txt"
         val bookPath = FileUtils.getPath(file, filename)
         val bookFile = FileUtils.createFileWithReplace(bookPath)
         val stringBuilder = StringBuilder()
@@ -161,7 +173,7 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
 
     @Suppress("BlockingMethodInNonBlockingContext")
     private fun exportEpub(doc: DocumentFile, book: Book) {
-        val filename = "${book.name} by ${book.author}.epub"
+        val filename = "${getExportFileName(book)}.epub"
         DocumentUtils.delete(doc, filename)
         val epubBook = EpubBook()
         epubBook.version = "2.0"
@@ -185,7 +197,7 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
 
 
     private fun exportEpub(file: File, book: Book) {
-        val filename = "${book.name} by ${book.author}.epub"
+        val filename = "${getExportFileName(book)}.epub"
         val epubBook = EpubBook()
         epubBook.version = "2.0"
         //set metadata
diff --git a/app/src/main/res/menu/book_cache.xml b/app/src/main/res/menu/book_cache.xml
index 71598a744..0f58daf7a 100644
--- a/app/src/main/res/menu/book_cache.xml
+++ b/app/src/main/res/menu/book_cache.xml
@@ -42,6 +42,11 @@
         android:title="@string/export_folder"
         app:showAsAction="never" />
 
+    <item
+        android:id="@+id/menu_export_file_name"
+        android:title="@string/export_file_name"
+        app:showAsAction="never" />
+
     <item
         android:id="@+id/menu_export_type"
         android:title="@string/export_type"
diff --git a/app/src/main/res/values-ja-rJP/strings.xml b/app/src/main/res/values-ja-rJP/strings.xml
index 5627a19b2..ef4dbae70 100644
--- a/app/src/main/res/values-ja-rJP/strings.xml
+++ b/app/src/main/res/values-ja-rJP/strings.xml
@@ -842,4 +842,5 @@
     <string name="show_discovery">显示发现</string>
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
+    <string name="export_file_name">导出文件名</string>
 </resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 2316617f8..a949fa0ba 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -842,4 +842,5 @@
     <string name="show_discovery">Mostrar</string>
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
+    <string name="export_file_name">导出文件名</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rHK/strings.xml b/app/src/main/res/values-zh-rHK/strings.xml
index 45cf4f55a..e6de6eeff 100644
--- a/app/src/main/res/values-zh-rHK/strings.xml
+++ b/app/src/main/res/values-zh-rHK/strings.xml
@@ -840,5 +840,6 @@
     <string name="show_discovery">显示发现</string>
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
+    <string name="export_file_name">导出文件名</string>
 
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 9e89c0e57..168223c92 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -841,5 +841,6 @@
     <string name="show_discovery">显示发现</string>
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
+    <string name="export_file_name">导出文件名</string>
 
 </resources>
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index b4ab34633..20ccc50d9 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -841,5 +841,6 @@
     <string name="show_discovery">显示发现</string>
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
+    <string name="export_file_name">导出文件名</string>
 
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index cd20abb71..d7d1ba6a8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -808,7 +808,7 @@
     <string name="background_image">Background image</string>
     <string name="copy_book_url">Copy book URL</string>
     <string name="copy_toc_url">Copy chapters URL</string>
-    <string name="export_folder">Export to a folder</string>
+    <string name="export_folder">Export folder</string>
     <string name="export_charset">Exported text coding</string>
     <string name="export_to_web_dav">Export to WebDav</string>
     <string name="reverse_content">Reverse content</string>
@@ -842,5 +842,6 @@
     <string name="show_discovery">Show</string>
     <string name="style">Style</string>
     <string name="group_style">Group style</string>
+    <string name="export_file_name">Export file name</string>
 
 </resources>