Children sleep with their tongues against the palate, some children are habit-forming, but parents must pay attention to whether the child has other manifestations. If the child appears to sleep snoring, open mouth breathing, and snoring sound is louder, snoring has frequent interruptions, the patient sleeps with breath holding, waking up, frequent turn over and other related performance, may suggest that the child has obstructive sleep apnea hypoventilation syndrome. In this case, it is necessary to go to the ear, nose and throat department by a specialist doctor to check the child’s nasal cavity, nasopharynx and oropharyngeal cavity, to see whether there is rhinitis, nasal boogers blockage, whether there is adenoid hypertrophy, whether there is tonsillar hypertrophy and other related diseases. If conditions permit, pediatric sleep apnea monitoring can be done to determine the child’s sleep condition and to see if there is any obstruction and the severity of the obstruction.