Aerosol transmission is one of the major routes of neocoronavirus transmission, and the virus is more insidious through aerosols than other routes of transmission. Aerosols are particulate matter suspended in the air. The virus is mixed in aerosols containing droplet nuclei, which are suspended in the air for a longer period of time, and a normal population exposed to aerosols with the virus may become infected with the new coronavirus, which is called aerosol transmission. Breathing, coughing, talking, spitting, vomiting, and flushing after urination and defecation all produce aerosols, and it is precisely because there are many ways to produce aerosols that the transmission of the virus through aerosols has a greater degree of uncertainty and invisibility. The new coronavirus can attach to dust, droplets, or droplet nuclei that have lost moisture, and float to distant places in the form of aerosols, causing long-distance transmission. It is important to wear a mask when going out, pay attention to indoor ventilation to reduce aerosol concentration, and regularly disinfect confined spaces, such as elevators and offices, which can minimize virus density and is an effective way to prevent aerosol transmission.