Antigen test domestic market at present, the epidemic situation has been well controlled in my country, but with the advent of the epidemic period of respiratory infectious diseases in winter and spring, and the existence of imported epidemics overseas, the new crown epidemic in my country is in a state of sporadic outbreaks. In particular, local confirmed cases have appeared in many places recently, indicating that my country's new crown prevention and control is still in a tense period. My country has a large population and a high density of urban populations. The experience of multiple outbreaks shows that my country still needs convenient and fast new crown detection technology, and at the same time, it needs to greatly reduce the cost and the occupation of medical resources.