Prevention of novel coronavirus pneumonia includes controlling the source of infection, cutting off the transmission route and protecting the susceptible population by isolating and treating confirmed and suspected cases, educating the public to wear masks, go out less, stay out of crowded places and not attend parties. Children and the elderly need to keep warm and strengthen their resistance. Treatment includes supportive and symptomatic treatment, such as maintaining the stability of the patient’s internal environment, oxygen monitoring, antiviral treatment, and the use of antibacterial drugs when necessary.