Asymptomatic infections of neocoronavirus pneumonia are usually cured without sequelae. New coronavirus pneumonia is an acute infectious pneumonia, the incubation period of this disease is 1-14 days, mostly 3-7 days. It can be transmitted through respiratory droplets, but also through close contact and aerosols. An asymptomatic infected person with neocoronavirus pneumonia is one who has been infected with the novel coronavirus but has no obvious symptoms of discomfort. If there have been no clinical symptoms during the isolation process, it means that the disease is very mild, and the relevant blood routine, C-reactive protein and chest CT results are basically normal, and there is no sequela after the cure of these patients. If the asymptomatic infection is due to the incubation period of pneumonia, the presence of sequelae will depend on the severity of the disease. In mild cases, there are no sequelae, while in severe and critical cases, there are different degrees of pulmonary fibrosis. Prevention is very important in the case of new crown pneumonia, and the public is urged to actively receive the new crown vaccine, early detection of new crown pneumonia, early isolation, early treatment, to reduce the occurrence of sequelae. Tip: The terms “new coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.