The best time for weaning should be after one year, and can even be extended to two years as appropriate. Breastmilk is rich in protein, trace elements, antibodies and various nutrients needed for the growth and development of the fetus, and is the best natural food for the baby, therefore, it is recommended that breastfeeding should be maintained for at least one year. At the same time, breastfeeding can increase the emotional communication and interaction between baby and mother, which is a bond that enhances the affectionate relationship. And breastfeeding can reduce the risk of ovarian cancer and promote uterine contraction, which is conducive to uterine recuperation. Currently, it is advocated that breastfeeding should last for at least one year and may be extended to two years where appropriate. Weaning should be arranged after one year of breastfeeding, when the baby is healthy, not in a state of illness and emotionally stable.