Abstract:  Atheism is the ideological background of Chinese culture and the important ideological basis for the integration of Marxism
and Chinese culture. History has proved that all religions in China are influenced, cultivated and guided by the atheist ideology of
Chinese culture, which is manifested as the integration of core ideas and spiritual cultivation, and the integration of loyalty and filial
piety ethics on the external level. Therefore, it can be said that atheism is an important ideological basis for the harmonious coexistence of all religions in our country, and an important ideological and theoretical guarantee for the healthy inheritance of religions in China at present.

Key words: atheism, Chinese culture, sinicization of religion