I have Multi-Language website, I need this website to migrate new Drupal website.
I can use node export module for export the content; however, I have a multi-language site, how should I handle those translation nodes ?
It is much easier to create an xml view of your content in each language and import it with feeds module and xpath. Or if it is easier for you, you can export to csv with views data export and import to your new drupal with feeds csv parser. It is much easier and more reliable as you have total control of your content. Though be careful with the delimiters if using csv. XML is safer.