Children can drink coffee, but it is not recommended that children drink coffee, because the caffeine in coffee has an excitatory effect on the cerebral cortex layer of children, so it is not recommended to drink coffee. Coffee contains caffeine, which has an excitatory effect on children’s cerebral cortex, thus affecting children’s sleep, which is not conducive to children’s sleep; secondly, coffee may damage children’s gastric mucus barrier, thus inducing gastroesophageal reflux, gastric mucous membrane damage, and even lead to gastric hemorrhage and gastrointestinal bleeding. Coffee also interferes with the metabolism of calcium ions in children’s bodies. Long-term consumption of coffee may cause calcium deficiency in children, thus affecting their growth and development. If children occasionally drink a little coffee, there is no obvious harm, but not long-term consumption, especially for young children, so as not to affect the growth and development of children. Children can drink coffee, but it is not recommended that the behavior, if there are symptoms of discomfort, it is recommended that parents take children to the hospital in time to improve the examination, and stop drinking coffee behavior.