TL;DR:Yes — ED visas allow studying Thai if you enroll full‑time at a licensed/approved Thai school or university; casual or unlicensed courses won’t qualify.
Yes — you can study Thai or other courses on a Thailand ED (education) visa, but the course and school must meet Thai authorities’ rules. The ED visa is for full‑time study at a recognised/licensed Thai institution (university, language school with proper licence, or MOE‑approved programme). Short casual classes, unpaid internships or purely recreational courses normally do not qualify. Typical requirements are an official acceptance/enrolment letter from the school, study schedule, passport, photos, proof of funds and sometimes a criminal record check and medical certificate for long stays. ED visas are issued for the course length (commonly 3, 6 or 12 months) and are extendable by Immigration while you remain enrolled; work remains prohibited unless you also get a work permit. For authoritative details and application checklist, consult the Thai Immigration Bureau and the Ministry of Education guidance (immigration.go.th and mso.go.th).
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