Since modern times, Buddhism, Taoism and Catholicism have spread in some Yi areas, but the inherent religious influence of Yi people's belief in animism, worship of gods, ancestors and totems is still deep.

Gods worship and believe in gods, land gods, water gods, stone gods, mountain gods, fire gods and the gods of the sun, the moon and the stars. Yi people believe that everything in the universe is created by God, the land is the source of food and clothing, the water god dominates the field from floods and droughts, and the fire god can exorcise evil spirits. Yi people all have the custom of offering sacrifices to heaven. In Xiaoliangshan, Yi men have braids erected to symbolize the gods? Buddha? ; On the first day of the first month in Weishan County, the Yi people should pay homage to their mother and fire. Sacrifice the dragon prince? ; Yi people in Xishan, Mile County choose to worship the land god in September of the lunar calendar; In Xundian County, the Yi people worship their ancestors to worship the water god. Will the Yi People's Association in Yongren County be held on the second day of the first month? Vulcan society? The Yi Torch Festival is also a fire festival; On the 25th day of the first month, the Black Yi people in Xishan, Kunming, will kill pigs to sacrifice to heaven, while the Bai Yi people have the custom of offering sacrifices to the Sun Bodhisattva.

Ancestor worship. Yi people believe that people's souls are immortal, and cremation can destroy people's bodies, making souls free, independent or attached to other things. Wandering ghosts are called ghosts. The soul of the deceased parents is a good ghost. Heavy funerals and ancestor worship are considered to protect the prosperity of future generations. After father's (mother's) death, there are generally ceremonies such as mortuary, funeral dance, Bimo chanting, mourning for relatives and friends, choosing a day for mourning, Bimo leading to death, and setting up a spirit tablet. There are three kinds of ancestor worship: daily sacrifice, festival sacrifice and cross sacrifice.

Totem worship. Totem worship is widespread in Yi people, mainly including bamboo worship, pine worship, gourd worship and bird and beast worship. The Yi people in Funing County believe that they are related to bamboo. Every village plants a orchid bamboo and holds a bamboo ceremony on April 20th of the lunar calendar. The Yi people in Chengjiang county regard pine trees and chestnut trees as sacred forests, and the whole village holds a big sacrifice on the third day of March. In Chuxiong and Honghe areas, it is said that the ancestors of Yi people hid in the gourd to spread smoke during the flood, so they sacrificed the gourd at home as a kind of ancestor worship. All Yi families in Xinping take birds and beasts as their ancestors and offer sacrifices during festivals or prayers. The Yi people in Ailaoshan worship tigers, and their clothing patterns are related to tigers. A woman's waist is embroidered with a tiger's head, a child wears a tiger hat and an old man wears tiger shoes. Is the Yi people in Shuangbai County held on the eighth day of the first month? Tiger Festival? .

Yi people believe that ghosts are symbols of disasters and should be attached to various objects for worship. All disasters and diseases are thought to be caused by evil spirits, so they believe in witchcraft that summons, releases and absorbs souls. In the past, people didn't need medicine to get sick, but asked Bimo to exorcise evil spirits. I believe that divination is good or bad, and there are many taboos in marriage, funeral and production. Bimo is a priest of Yi religion, presiding over religious activities, teaching Yi language, translating Yi language scriptures and divining for people. A wizard with a lower status than Bimo is called Suni or Moni.