If it is determined that there are no contraindications to the vaccination of children with the new crown vaccine, then it is possible to vaccinate children with both the Beijing Coxin New Crown Vaccine and the Beijing Biological New Crown Vaccine. The Beijing Coxin vaccine and Beijing Biologicals vaccine are both inactivated vaccines, and the inactivated vaccine may cause less adverse reactions in the body. Therefore, children can be vaccinated with both vaccines, and there is little difference in the effects of the vaccines, which can effectively prevent infection with the new coronavirus. Before a child is vaccinated, it should be clarified whether the child is allergic to the active ingredients of the vaccine, whether he/she is in a period of seizure, and whether he/she has uncontrolled epilepsy or other diseases. If the child is eligible for vaccination, he/she should be vaccinated only. The child should be kept under observation for 30 minutes after vaccination, and parents need to take good care of the child at home to minimize the incidence of adverse reactions.