Mouth chewing during sleep is a common manifestation of sleep-type epilepsy in 8-year-old children, who are also accompanied by tongue licking, swallowing, muscle twitching in the face or hands and feet, etc. Parents are advised to bring their children to children’s specialized hospitals for diagnosis and treatment as soon as possible. I. Causes: Sleep-type epilepsy is a brain dysfunction disease caused by abnormal discharges of neurons in the brain. Due to the abnormal discharges in the brain, 8-year-old children will have abnormal behaviors during sleep, in which tongue licking, chewing and swallowing are common symptoms of sleep-type epilepsy, which is usually accompanied by dysphoria, awakening from sleep, dystonia, and dyskinesia, and other manifestations. Second, treatment measures: 1, to avoid triggering factors: emotional over-excitement or shock, will lead to the cerebral cortex in a state of excitement, thus inducing sleep-type epilepsy seizures. Parents are advised to provide a quiet and comfortable environment for the children, avoid playing with the children before bedtime, and improve the quality of the children’s sleep; 2, daily care: you can properly give the 8-year-old children to eat some easy-to-digest food, supplemented with fresh vegetables and fruits, such as kiwifruit, cherries, etc., and at the same time, supplemented with more fish, shrimp, lean meat, nuts and other foods, to maintain a balanced diet, with a combination of meat and vegetables, to enhance the children’s physique, and help the disease to recover as soon as possible; 3, drug treatment: the children’s physical condition, to help the disease to recover as soon as possible. 3, drug treatment: 8-year-old children with sleep-type epilepsy, need to adhere to long-term medication, such as complying with medical advice to take carbamazepine tablets, phenobarbital tablets, can not stop their own medication, should be gradually reduced under the guidance of the doctor.