With a complicated geology structure, Thanh Hoa is the homeland of mountains, rivers and gathers many groups of minorities as Thai, Muong, Dao, Mong, Kho-mu, Tho, O-du. Among them, Thai people’s culture is really significant and diversified. The book is divided into 3 main parts as follows: - Overview of Thai people in Thanh Hoa, Nghe An. - Some customs of Thai people in Thanh Hoa, Nghe An. - Some traditional festivals of Thai people in Thanh Hoa, Nghe An