Prevention and treatment of novel coronavirus are equally important. New coronavirus is a contagious disease, prevention has three main aspects, control the source of infection, do a good job in the prevention of transmission, to protect the immunocompromised people, to avoid contact with suspected or infected patients, to do a good job in protective measures, to avoid transmission of the virus through the air droplets and contact, to ensure good rest and diet, and regular exercise to enhance the immune system. The treatment of new coronavirus mainly includes viral therapy, symptomatic treatment and strict isolation. After diagnosis, pay attention to bed rest, maintain adequate energy intake, pay attention to the observation of vital signs, and if necessary, give effective oxygen therapy, injection of human immunoglobulin and so on. If necessary, psychological counseling to avoid anxiety and fear. The new crown vaccine injection into the human body to stimulate the body to produce the appropriate antibodies, which can play a specific protective effect, can effectively play a preventive role. It is recommended to wear a good mask when going out, avoid going in and out of places with a large flow of people, exercise regularly to improve immunity, and avoid contact with suspected people to avoid infection.