Prevention of novel coronavirus pneumonia can be done by boiling or heating, but also by using 75% alcohol, various chlorine-containing disinfectants such as pasteurization solution, bleach, and also peracetic acid and ether to inactivate the virus. The new coronavirus is more sensitive to ultraviolet light and heat, and the virus can generally be inactivated at 56°C for 30 minutes. If boiling is used, inactivation can generally be achieved in a few minutes, so for heat-resistant food or tableware, boiling can be used for disinfection. If it is an indoor space, it can be sprayed with chlorine-containing disinfectant or 75% alcohol, and if possible, it can be irradiated with ultraviolet light. Shoe soles can be sprayed with chlorine-containing preparations, and clothing can be disinfected with 75% alcohol. Various excreta and secretions can be soaked in peracetic acid, and the room should be ventilated by opening windows.