Can be accurate to the district village. In the context of the normalization of epidemic prevention and control, scientific prevention and control, precision policy has proved to be a powerful weapon in epidemic prevention and control. In the face of the ever-mutating virus, neither can we be afraid of, nor can we do it blindly, that is, according to the big data accurate traceability, health code tracking trajectory and other technical means of accurate traceability, quickly lock the epidemic areas and people, in the close and sub-closely connected to the exhaustion of not only should not miss a person, but also the pursuit of not more than one person, according to the actual situation of the epidemic implementation of accurate, differentiated urban control, community control program, to ensure that the epidemic prevention and control measures match the epidemic situation. The measures match the epidemic and minimize the impact of the epidemic on people's lives.