The third dose of the new crown vaccine is recommended to be given as soon as possible if eligible, but can be withheld if there are contraindications to vaccination. If you meet the conditions for the third vaccination of the new crown vaccine, it is recommended that most of the population as soon as possible to complete the vaccination, according to research data show that the completion of the third vaccination patients than only complete the first two shots of the formation of the immune protective effect of the patient is significantly enhanced, especially under the conditions of the current recurrent epidemic in the country, as early as possible to vaccinate not only to protect themselves, but also in response to the policy of prevention and control of epidemics and to cooperate with the government’s work. However, if there are clear contraindications to vaccination, such as acute exacerbation of chronic diseases, pregnancy, severe allergies, etc., the risk of vaccination is higher, and should not be carried out, with the safety of life as the first priority, and need to be under the premise of good control of the disease, completion of pregnancy, etc., and obtain the consent of the doctor before vaccination.