Benzhuism (Chinese: 本主教; pinyin: Běnzhǔjiào; literally: "religion of the patrons") is the indigenous religion of the Bai people, an ethnic group of Yunnan, China. It consists in the worship of the ngel zex, the Bai word for "patrons" or "lords", rendered as benzhu (本主) in Chinese, that are local gods and deified ancestors of the Bai people. It is very similar to common Chinese religion.
While many of the Bai are Buddhists, the local government of China has recently helped the revival of the Benzhu ethnic religion, for example through the promotion of the Gwer Sa La festival.
The benzhu are mainly deified ancestors, "patrons" or "lords" of the local communities. Every Bai village has its own pantheon of gods which has formed throughout its existence, incorporating its history in deifying virtuous leaders, warriors, and heroes. These deities, who are tied to the immediate surroundings, protect the people against sickness and violence, foster local economy, and grant prosperity.
Generally, one village enshrines one benzhu, and there are also cases of multiple villages consecrated to the same benzhu. In every village around Erhai Lake the local people have developed a peculiar mythology about their local lord, differing from that of neighboring villages. This tradition is similar to that of the City God Temple of Chinese religion.
Other benzhu are gods of the generation of the local place. These include the God of the Mountain, the God of the Crops, the God of the Hunt, the Dragon King or the Mother Goddess of the Dragon King.