The baby always chokes on milk powder, first of all, there may be esophageal tracheal fistula, congenital tracheal stenosis or tracheal softening, laryngeal cartilage underdevelopment, not adapted to the milk powder and other factors related to the different situations to be analyzed reasonably. 1. esophagotracheal fistula: the opening between the esophagotrachea is completely occluded by the esophagotracheal septum that extends from the back, and if the blockade is incomplete, it can be manifested as an esophagotracheal fistula, and babies will choke on milk when they drink formula. 2. congenital tracheal stenosis or tracheal softening: if the trachea is not fully developed during the development of the fetus resulting in stenosis or softening, in the process of the baby drinking milk powder, the baby may inhale the air resulting in choking. 3. incomplete development of laryngeal cartilage: due to individual differences, some babies may have incomplete development of laryngeal cartilage, which may lead to coughing and choking during formula feeding. 4. to the milk powder is not adapted: if the baby is mainly breastfeeding in the early stage, in the change of milk powder feeding, some of the baby may be not adapted to the milk powder, or in the feeding of the milk flow is too fast, which may cause irritation to the throat choking occurs. The baby drinking milk formula always choking, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.