Breastfeeding has the following advantages: 1. Breastfeeding is most suitable for the needs of infants. The quality of nutrients contained in breast milk is most suitable for infants’ needs, digestion, absorption and utilization. (1) The nature of protein in breast milk is better than that of cow’s milk, which is easily absorbed and utilized by infants. (2) The composition of fat is good and easily absorbed, and contains linoleic acid, lecithin and sphingomyelin, which are important components for brain development of infants (3) It contains lactose to promote the growth of lactobacilli, which can prevent intestinal diseases. (4) The calcium to phosphorus ratio (2:1) is appropriate and conducive to absorption. (5) breast milk vitamin A, C and E content than milk. (2) Breastfeeding is not easy to cause allergies. The proteins in breast milk are human proteins, while the proteins in cow and goat milk are allogeneic proteins, which can cause eczema and other allergic symptoms in infants. 3, breast milk can enhance the infant’s ability to resist disease. Breast milk contains a large number of active immune factors, which are not available in other foods. Breast milk has a variety of immunoglobulins, live immune cells and active lysozyme, which can protect infants’ intestinal and respiratory mucosa and reduce respiratory and intestinal infections. 4, breast milk direct feeding, no need to sterilize, both convenient and economic, breast milk is almost sterile, the temperature is appropriate, with the needs of the baby natural regulation, breastfeeding is not easy to overfeed, less infant obesity. 5, breastfeeding can also promote mother-infant relationship, easier to produce mother-infant attachment, conducive to infant intellectual development. 6, conducive to the mother’s postpartum recovery, the baby sucking breast can promote the mother’s secretion of oxytocin, strengthen the contraction of the uterus, to prevent uterine bleeding. Reduce the occurrence of breast cancer or ovarian cancer in mothers.