Customs and habits: They live in villages and hamlets, either along stream shores or in plains and valleys. Houses were formerly built on stilts, but today modern changes can be seen in construction. For the Sán Chỉ, religious practises for death ceremonies are extremely important.
Language: Tày - Nùng
Culture: There are many unique legends, poems and songs, with themes ranging from nature to familial and social relationships which is expressed by "Bac Thien Loi Eating Meat" story of Sán Chi. Telling story by poem: " Soóng Co". The dances of the Gâu Bird, "Xúc tép" of the Sán Chỉ. Musical instruments: thanh la, não bạt...
 Traditional clothing: wear short jackets, long robes, skirts, trousers, belts, turbans, cloth shoes and jewellery, these are mainly of a black or deep blue colour.
 Economy: Their main means of living are agriculture and animal breeding.