For the prevention of novel coronavirus, firstly, we should try to stay away from the source of infection, including avoiding going to areas where the disease is prevalent and contacting people related to infected areas, reducing visits to crowded public places, especially places with poor air circulation, and avoiding taking public transportation as much as possible. The next step is to cut off the transmission route, including wearing qualified surgical masks or N95 masks when going out, and avoiding contact with public facilities such as door handles and handrails in hospitals and train stations as much as possible. If it cannot be avoided hand disinfection should be carried out in time, contact with parts of the mouth and nose should be temporarily avoided, and hand shaking and close contact between people should be avoided as much as possible. In addition, attention should be paid to a balanced diet, reasonable nutrition, appropriate consumption of mung beans, bananas, dragon fruit and other foods with anti-viral effects, keep the living environment clean, and improve their own immunity.