Study in Thailand during the winter and summer vacations. Do I need to renew my visa?

Yes. While studying in Thailand, you need to report to the Immigration Bureau or the school to renew your visa every 3 months. During the winter and summer vacations, you need to renew your visa to avoid expiration. Renewal refers to the re-visa after the passport visa expires, that is, the original period of work and study abroad has not expired, and the re-visa can be renewed only when the re-visa matters are consistent with the last visa.