Preventive measures for pneumonia are, first of all, to strengthen self-protection, to maintain good habits, to avoid staying up late, to avoid exertion, to avoid getting cold and flu, to eat a nutritious diet, to exercise properly, to quit smoking as much as possible, to avoid alcoholism and drunkenness. Through these methods to enhance their own resistance, and secondly, if the original underlying disease should also be actively diagnosed and treated. The recent outbreak of new coronavirus pneumonia, which is very contagious and belongs to category B infectious disease, should be strengthened with appropriate protection, especially to reduce unnecessary outings, avoid going to infected areas, wear masks when going out, and avoid crowding. It is also important to pay attention to the ventilation of indoor air and the hygiene of the surrounding environment, to pay attention to hand hygiene, and to control the sources of infection, especially for patients with new pneumonia and suspected patients, who need to be isolated for observation and treatment.