Abstract: The dead pig handling behavior of pig farmers is of great significance for improving pork quality and safety and pig breeding environment. This paper used evolutionary game model to study the evolution, stability and influencing factors of government and pig farms' strategy choice in the process of handling pigs. The results showed that the government and pig farms' choice was related to government supervision costs, public attention, government supervision, reputation loss of government negative regulation, cost of innocent treatment of sick pig, government subsidies, the illegal sale price of sick pigs, the probability of improper handling of sick pigs in pig farms, punishment for improper handling of pigs killed in pig farms. The simulation results showed that the government can effectively promote the pig farms and the government treatment strategies to an ideal equilibrium by properly subsidizing pig farmers who have implemented the harmless treatment of dead pigs, increasing penalties for pig farms' improper handling of sick pigs, and raising public concern about pork quality and safety.