It is more appropriate for six-month-old babies to be fed 180~200ml of milk at a time, but different babies develop differently, so the amount of milk each time should be calculated according to the baby’s weight, and breastfeeding should be done according to the need. Infants around six months old usually need to consume about 800ml of breastmilk or formula milk a day, which can be divided into four feedings. So the amount of milk intake for an infant is about 180~200ml each time. However, as different infants have different developmental conditions, the exact amount of milk intake per day or per feeding needs to be calculated according to the infant’s body weight, which is usually 100-120ml of breastmilk or formula milk per kilogram of body weight. Most infants around six months old have already added complementary foods, breast milk or formula milk can not fully meet the growth and development needs of infants, therefore, infants around six months old can also increase or decrease the amount of milk intake according to the addition of complementary foods, in addition, it is best to breastfeed on-demand, babies need to breastfeed.