The Chinese Rites controversy was a dispute within the Roman Catholic Church from the 1630s to the early 18th century about whether Chinese folk religion rites and offerings to the emperor constituted idolatry or not. Pope Clement XI decided in favor of the Dominicans (who argued that Chinese folk religion and offerings to the emperor were incompatible with Catholicism), which greatly reduced Catholic missionary activity in China.
It was related to larger controversies between the Dominicans and Jesuits over the adoption of local practices of other countries, such as the ascetic brahmin practices of India.