The baby always choking on water may be caused by improper feeding of parents, respiratory diseases, gastroesophageal reflux and other reasons. 1. Improper feeding of parents: If the baby is in a lying state to drink water, or parents feed too fast, etc., may lead to the baby always choking on water. 2. Respiratory diseases: If the baby has laryngitis, pneumonia, bronchitis, etc., when drinking water, it may irritate the mucous membrane of the throat, leading to the situation of choking on water. 3. Gastroesophageal reflux: mostly due to the baby pancreatic sphincter underdevelopment and other reasons, the baby drink water, water may reflux stimulation to the pharynx or trachea mucosa, and drink water always choking situation. The baby drink water always choking, may still be other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or standardized treatment.