diff --git a/flutter/lib/mobile/pages/remote_page.dart b/flutter/lib/mobile/pages/remote_page.dart
index 19f7cc575..e8a888696 100644
--- a/flutter/lib/mobile/pages/remote_page.dart
+++ b/flutter/lib/mobile/pages/remote_page.dart
@@ -242,12 +242,16 @@ class _RemotePageState extends State<RemotePage> {
     }
   }
 
-  // handle mobile virtual keyboard
-  void handleSoftKeyboardInput(String newValue) {
+  async void handleSoftKeyboardInput(String newValue) {
     if (isIOS) {
-      _handleIOSSoftKeyboardInput(newValue);
+      // fix: TextFormField onChanged event triggered multiple times when Korean input
+      // https://github.com/rustdesk/rustdesk/pull/9644
+      await Future.delayed(const Duration(milliseconds: 10));
+
+      if (newValue != _textController.text) return;
+      return _handleIOSSoftKeyboardInput(_textController.text);
     } else {
-      _handleNonIOSSoftKeyboardInput(newValue);
+      return _handleNonIOSSoftKeyboardInput(newValue);
     }
   }