According to the Technical Guidelines for Neocoronavirus Vaccination, continued breastfeeding is recommended for breastfeeding women who have received the Neocoronavirus vaccine. Although there are no data from clinical studies to clarify the effects of neocoronavirus vaccination in breastfeeding women on the women themselves and on their breastfeeding infants and children. However, based on physiology and previous experience with other vaccinations, the vaccine can stimulate the body to produce antibodies and T cells that may pass into breast milk and may potentially protect infants and young children through breastfeeding. Moreover, breastfeeding is important for the nutrition and health of infants and young children. Therefore, according to the Technical Guidelines for Neocoronavirus Vaccination, it is recommended that breastfeeding women who are at high risk of neocoronavirus infection should receive the vaccine, and that breastfeeding can be continued after neocoronavirus vaccination.