Evolutionary game theory has good applicability in the study of Chinese law-based government. Thus evolutionary game model of Chinese law-based government is established by using “replicator dynamics” method to prove that “Endogenous evolution” rule of law can radically solve the government “power paradox” problem. The construction of Chinese law-based government need to center on the theme of restrainting and standardizing the government power, establish the interactive balance spirit and take the strategy of gradualism to promote the transition of China’s rule of law order.