This research is based on cultural assimilation in Tembilahan district, Indragiri Hilir regency between Banjar society and Melayu society as the majority society. The formulation of this research is what is the supporting factors that influence the assimilation process of Banjar society in Melayu environment of Tembilahan district, Indragiri Hilir regency. The aim of this research is to know th…