Neocoronavirus vaccination is voluntary, but neocoronavirus vaccination is necessary for the vast majority of the population. The majority of our country has not developed specific immunity to neocoronaviruses (have not been infected with neocoronaviruses), and are therefore susceptible to neocoronaviruses, especially after the onset of infection with neocoronaviruses, when the patient is at risk of developing critically ill cases, or even death. Neocoronavirus vaccination is effective in reducing the risk of morbidity, critical illness and death. In addition, more vaccinated people can increase the immunity of the population, thus reducing the infectiousness of the virus. As the New Crown virus is a highly contagious virus that can be transmitted through respiratory droplets and contact, universal vaccination can greatly reduce the impact of New Crown on the community and help prevent a New Crown pandemic. Contraindications and precautions for vaccination against New Crown should be understood before vaccination to prevent accidents.