Explosive leap refers to the explosive transformation of things from old quality to new quality, as opposed to "non-explosive leap", which is the qualitative change of things' development. 195 1 year, Stalin put forward in his book Marxism and Linguistics: "For a society divided into two hostile classes, outbreak is necessary. But for a society without hostile classes, the outbreak is by no means necessary. "

Chinese scholars study Stalin's theory with Mao's theory of contradiction, and think that explosive leap is generally a qualitative change form to solve antagonistic contradictions and a struggle form of confrontation in the process of qualitative change. The explosive leap is characterized by fierce external conflicts. For example, volcanic eruption, bomb explosion, fission of uranium nucleus, polymerization of hydrogen nucleus, and violent seizure of political power in social phenomena.