It is in order to protect the people's lives and health, China's population of more than 1.4 billion, belonging to the populous country, if the "lying flat", once the virus invasion, it will be in a short period of time caused by large-scale dissemination. And the scale of infection to expand, the medical environment in China will bring unprecedented pressure, first of all, it will threaten the people's lives, and secondly, it will also lose more human resources, financial and material resources, look back to the end of 2019, the outbreak of the epidemic at the beginning of the outbreak will be able to know. Therefore, for the prevention and control of the epidemic, we must adhere to the policy of zero, can not "lie flat". Therefore, it is necessary for China to strictly prevent and control the epidemic.