Good sleep is a prerequisite for children’s healthy growth and development, and children’s sleep disorders are receiving more and more attention from the medical profession and parents. Among the many diseases that cause sleep disorders in children, snoring is the most common and has the most far-reaching impact. In the past, many parents would consider it as a sign that their children are “sleeping well”. As people’s health awareness has increased, they have come to realize that this is a sign of disease. Many children not only snore, but also have trouble sleeping, open-mouth breathing, labored breathing, or even apnea, and bruising of the lips. During the day, the child may show signs of irritability, decreased concentration, decreased academic performance, etc. Over time, a series of facial changes such as longer upper jaws and protruding teeth may occur. Causes of snoring usually include the following points: 1, airway obstruction: the front to the opening of the nasal cavity, down to the opening of the trachea, all the airway in any part of the obstruction can be caused by poor airflow, resulting in children snoring. Common causes are adenoid hypertrophy, tonsil hypertrophy, chronic rhinitis, sinusitis and even airway occupancy, etc., of which adenoid hypertrophy and tonsil hypertrophy are the most common causes of snoring. 2.Central regulation abnormality: the respiratory regulation abnormality induced by various reasons can lead to abnormal respiratory rhythm and movement during sleep, thus leading to this disease. 3.Special causes: such as obesity, endocrine disease, genetic metabolic disease, etc. can cause this disease. Doctors can understand whether there is any abnormality in children’s sleep through sleep monitoring, whether the oxygen intake in the blood is sufficient when children fall asleep, whether it can ensure normal growth and development, and whether there is any problem of central nervous system regulation. Nasal endoscopy or electronic nasopharyngeal microscopy can help doctors to understand the part of the patient’s airway obstruction and its causes, such as adenoid hypertrophy and tonsillar hypertrophy, and so on.