diff --git a/packages/flutter_tools/lib/src/ohos/hvigor.dart b/packages/flutter_tools/lib/src/ohos/hvigor.dart
index 9d842fce6c3654315c9281c199431e412fd975bb..786409af0992c7495149a91d1919ae42aa330321 100644
--- a/packages/flutter_tools/lib/src/ohos/hvigor.dart
+++ b/packages/flutter_tools/lib/src/ohos/hvigor.dart
@@ -194,7 +194,12 @@ Future<void> signHap(LocalFileSystem localFileSystem, String unsignedFile,
       logger: logger);
 
   final List<String> cmdSignHap = <String>[];
-  cmdSignHap.add('python3');
+  if (isWindows) {
+    cmdSignHap.add('py');
+    cmdSignHap.add('-3');
+  } else {
+    cmdSignHap.add('python3');
+  }
   cmdSignHap.add(globals.fs.path.join(signToolHome, 'autosign.py'));
   cmdSignHap.add('signHap');