Chinese folk religion, also known as Chinese popular religion, comprehends a range of traditional religious practices of Han Chinese, including the Chinese diaspora. Vivienne Wee described it as "an empty bowl, which can variously be filled with the contents of institutionalised religions such as Buddhism, Taoism, Confucianism and Chinese syncretic religions". This includes the veneration of shen (spirits) and ancestors. Worship is devoted to deities and immortals, who can be deities of places or natural phenomena, of human behaviour, or founders of family lineages. Stories of these gods are collected into the body of Chinese mythology. By the Song dynasty (960–1279), these practices had been blended with Buddhist, Confucian, and Taoist teachings to form the popular religious system which has lasted in many ways until the present day. The present day government of mainland China, like the imperial dynasties, tolerates popular religious organizations if they bolster social stability but suppresses or persecutes those that they fear would undermine it.

Chinese Buddhism or Han Buddhism is a Chinese form of Mahayana Buddhism which draws on the Chinese Buddhist canon as well as numerous Chinese traditions. Chinese Buddhism focuses on studying Mahayana sutras and Mahāyāna treatises and draws its main doctrines from these sources. Some of the most important scriptures in Chinese Buddhism include: Lotus Sutra, Flower Ornament Sutra, Vimalakirtī Sutra, Nirvana Sutra, and Amitābha Sutra. Chinese Buddhism is the largest institutionalized religion in mainland China. Currently, there are an estimated 185 to 250 million Chinese Buddhists in the People's Republic of China. It is also a major religion in Taiwan, Singapore, and Malaysia, as well as among the Chinese Diaspora.