Abstract: One of Mao Zedong's contributions to Marxist epistemology is to take the lead in discussing the five cycles of the cognitive movement,known as the cycle of practice-cognition-practice,of material-spirit-material,of special-general-special,of mass-leadership-mass,and of democracy-centralization-democracy.The cycle of practice-cognition-practice reveals the essence and general law of the cognitive movement,which contains the dialectical materialism principle of matter-spirit-material,the materialist dialectical concept of special-general-special,themass line working method of mass-leadership-mass,and the leadership principle of democracy-centralization-democracy.The five cycles of the cognitive movement embody the characteristics of the cognitive process,such as openness,subjectivity,methodology,isomorphism,ascension and so on,unifying epistemology and methodology and creating a new realm of Marxist epistemology.

Key words: Mao Zedong, cognitive movement, five cycle, On Practice, isomorphism of cognitive movement