As a result of generations of close contact with the Tibetans and Mongolians, most Tus practice Tibetan Buddhism (Lamaism). Under the influence of the Han people, they also worship their ancestors and believe in the God of Wealth, the kitchen god, the door-god and others. The Family God is also revered in all households as the family protector.

Every Tu family enshrines a deity for protection. On the new eve of Lunar Year, every family holds sacrificing ceremony. They burn pine branches smeared with ghee and kowtow. Because a lot of Tu people living in mountain area, they all worship mountain deities who are believed to protect them from natural disasters.