Bimo culture of Yi nationality is a unique traditional custom passed down from generation to generation. In the Yi language, “Bi” means praise and chanting during religious activities, and “Mo” means elder or teacher. The so-called Bimo is a person who performs ritual activities in the form of chanting scriptures and can be understood as a priest.

As a religious professional, Bimo’s main functions are priest, witch doctor, divination, Lord curse. Bimo also organized, standardized and taught the Yi language and other cultural functions, writing and copying classics including religion, philosophy, ethics, history, astronomy, medicine, pesticides, crafts, etiquette and customs, and characters. Bimo plays a major role in the production and life of the Yi people, such as birth, marriage, funeral, disease, festivals, hunting and sowing. Bimo controlled theocracy, grasped the culture, and deeply influenced the spiritual world of the Yi people.