Saisiyat (Say-Siyat) society consists of village clans. The Saisiyat people adopted Chinese surnames during the Qing dynasty and followed the social and marriage norms. The ancestral spirits and little black spirits are the major religious beliefs in the Saisiyat people, and Pas-ta’ai (Ritual for the little black spirits) is particularly well known. Currently, the Saisiyat population has 6,730 people (as of January 2020).