Suspected and confirmed cases of novel coronavirus should be treated in isolation at a designated hospital with conditions, and critical cases should be treated in the ICU. Treatment measures mainly include supportive therapy, oxygen, monitoring and antiviral therapy, combined with antibacterial drugs when necessary. The treatment of severe and critical cases is more complicated. In addition to symptomatic treatment, it is necessary to actively prevent and treat complications, prevent infection, give patients respiratory support and circulatory support, and maintain normal organ function. At the same time, humanistic care must be given to patients to eliminate their anxiety and fear. Most patients with mild disease can be cured with the above symptomatic treatment.