diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 4def37e81..9ec9fbaf3 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -15,6 +15,7 @@ import androidx.core.view.size
 import com.jaredrummler.android.colorpicker.ColorPickerDialogListener
 import io.legado.app.BuildConfig
 import io.legado.app.R
+import io.legado.app.constant.AppConst
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
 import io.legado.app.constant.Status
@@ -726,6 +727,7 @@ class ReadBookActivity : ReadBookBaseActivity(),
             startActivity<SourceLogin> {
                 putExtra("sourceUrl", it.bookSourceUrl)
                 putExtra("loginUrl", it.loginUrl)
+                putExtra("userAgent", it.getHeaderMap()[AppConst.UA_NAME])
             }
         }
     }
diff --git a/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
index b8d5ca594..b51e6f899 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
@@ -113,6 +113,7 @@ class BookSourceEditActivity :
                         startActivity<SourceLogin> {
                             putExtra("sourceUrl", it.bookSourceUrl)
                             putExtra("loginUrl", it.loginUrl)
+                            putExtra("userAgent", it.getHeaderMap()[AppConst.UA_NAME])
                         }
                     }
                 }
diff --git a/app/src/main/java/io/legado/app/ui/login/SourceLogin.kt b/app/src/main/java/io/legado/app/ui/login/SourceLogin.kt
index d357e9c53..028b85b98 100644
--- a/app/src/main/java/io/legado/app/ui/login/SourceLogin.kt
+++ b/app/src/main/java/io/legado/app/ui/login/SourceLogin.kt
@@ -19,6 +19,7 @@ class SourceLogin : BaseActivity<ActivitySourceLoginBinding>() {
 
     var sourceUrl: String? = null
     var loginUrl: String? = null
+    var userAgent: String? = null
     var checking = false
 
     override fun getViewBinding(): ActivitySourceLoginBinding {
@@ -28,6 +29,7 @@ class SourceLogin : BaseActivity<ActivitySourceLoginBinding>() {
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         sourceUrl = intent.getStringExtra("sourceUrl")
         loginUrl = intent.getStringExtra("loginUrl")
+        userAgent = intent.getStringExtra("userAgent")
         title = getString(R.string.login_source, sourceUrl)
         initWebView()
     }
@@ -38,6 +40,9 @@ class SourceLogin : BaseActivity<ActivitySourceLoginBinding>() {
         settings.setSupportZoom(true)
         settings.builtInZoomControls = true
         settings.javaScriptEnabled = true
+        userAgent?.let {
+            settings.userAgentString = it
+        }
         val cookieManager = CookieManager.getInstance()
         binding.webView.webViewClient = object : WebViewClient() {
             override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {