The third dose of recombinant neocoronavirus vaccine should be completed within four months of the second dose; inactivated vaccines should be administered as soon as possible after six months have elapsed between the third and second dose. The vaccination program for recombinant neocoronavirus vaccine is a three-dose program, with an interval of ≥4 weeks between adjacent doses; the second dose should be completed as close as possible to eight weeks after the first dose, and the third dose should be completed as close as possible to six months after the first dose. The basic immunization schedule for the inactivated New Coronavirus vaccine is two doses, with the third dose being a booster vaccination, which is currently only indicated for adults. The third booster shot requires an interval of at least six months from the second shot, and should be completed as soon as possible when the interval has expired in people over 18 years of age and when there are no relevant contraindications to vaccination, in order to enhance the protective effect of the vaccine. The best way to prevent the infection of new crown pneumonia is vaccination, it is recommended to complete the vaccination program in a timely manner according to the regulations, and do a good job of personal protection. Tip: “New coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.