As a way to resolve the risk of epidemic prevention and control，risk exchange has played an important role in dealing with the problems of information alienation and difficult decision?making in the process of epidemic prevention and control. China has developed risk exchange experience and practice in the prevention and control of COVID ? 19. Certainly，in the current epidemic prevention and control，there are still some problems，such as legal defects，fragmentation of risk exchange，asymmetry of risk exchange rights， alienated risk information due to excessive new media communication，lack of corresponding supporting mechanisms and so on. Therefore，based on the foreign experience in risk communication，it can be constructed from the aspects of repairing laws and regulations，improving the capacity building of the main team，balancing the rights and obligations of each main body，improving the implementation procedures of risk exchange for epidemic prevention and control，optimizing the aid system and so on.