The amount of milk for three-month-old babies is usually 700-900ml throughout the day, with large individual differences, so it is recommended that they be fed on demand. Three-month-old babies eat milk 5-6 times throughout the day, about 150ml each time, a total of 700-900ml throughout the day. but each baby’s appetite varies, do not have to be too concerned about the amount of milk, to determine whether the baby has eaten enough milk, the main need to be based on the baby’s state of judgment, the infant is eating enough to eat the baby’s spirit, sleep well, more than 6 times a day to change the diaper, the weight of the weight of the monthly growth of 0.45-0.75 kg. More than three months of the baby’s milk volume tends to stabilize, it is recommended to follow the principle of feeding on demand, the baby appeared to cry, foraging for food when you need to feed until the baby stopped eating, showing satisfaction, while eating enough to stop eating and then do not force to feed the baby, which is likely to lead to spitting up, overweight and other problems. More than three months the baby’s milk amount is 700-900ml / day, parents are advised to feed the baby according to the baby’s situation on demand, if there is a significant decline in the baby’s milk, growth and development delayed and so on to consult a doctor in a timely manner.