Three months baby milk volume standard is about 720~900mL a day, specific can not be generalized. Three months baby milk amount standard is about 720~900mL a day, generally six times a day milk, interval 3~4 hours once, each time 120~150mL, but the baby’s milk amount has individual differences, according to the baby’s specific situation to adjust the amount of milk. After the baby is born, milk is the only food, if it is breastfeeding, usually on-demand breastfeeding, the mother’s milk can reach 750mL per day, to meet the needs of the baby within six months. If you are formula-fed, you can feed your baby at intervals of three to four hours. In addition, also pay attention to the baby’s weight gain, if the baby’s weight gain is less than 500g, to pay attention to whether there is not enough milk, to give timely adjustment, if necessary, consult a medical professional.