Beijing "Health Treasure" is a small tool for individuals to inquire about the health status related to epidemic prevention and control during the epidemic prevention and control period. Citizens can quickly inquire about personal health status related to epidemic prevention by inputting their names and ID numbers for face recognition. The query results include "centralized observation", "home observation" and "nothing unusual". With the gradual recovery of production and work in enterprises, buildings, enterprises and public places can take the query results of "Health Treasure" as a reference and combine the existing prevention and control measures to manage personnel access conveniently and quickly.