Abstract：In recent years, swine epidemic occurs frequently in China, which has serious economic and social impacts. Empirically analyzing the impact of epidemic emergency and exploring the risk factors causing the epidemic, we found that there are human fault and other risk factors, which can be avoided, in the early stages of the swine epidemic. Such emergency extended in two ways: the expansion of space and the revising of the intensity. We also verified that the epidemic can result in the fluctuation of pork price and public opinions. Based on the mechanism analysis, we put forward the relevant policy suggestions on how to improve the monitoring and early warning sensitivity, to optimize the disposal and coordination mechanism, to stable epidemic-induced price changes and to eliminate the public panic.

Keyword：swine epidemic;influence mechanism;risk factors;