Patients with sleep apnea syndrome are often severe snorers, and apnea occurs during sleep because the pharynx is blocked and airflow is completely obstructed. As the warm lungs are satisfied that they cannot get fresh air, the brain will wake up the body briefly this year to a level where it can contract the muscles of the pharynx to release the airway obstruction and resume past breathing. This expiratory process in the whole night sleep can be thanks to the occurrence of dozens of times to a hundred times ranging from a few seconds to tens of seconds each time, usually patients themselves are not easy to notice, the effect accumulates over the years, without effective treatment complex, it will cause serious cost consequences. Examination of sleep apnea syndrome: At present, polysomnography is used for examination. The examination is simple, that is, electrode pieces are attached to the head, face and body to monitor the patient’s electrocardiogram, electroencephalogram, respiration, blood oxygen and other data while sleeping at night, and analysis. Treatment of sleep apnea syndrome: 1, mild cases are encouraged to lose weight, avoid long hope time supine, corticosteroid nasal drops to ensure the airway is open, and oxygen therapy can be given if necessary. 2.Patients with central type, under the premise of active treatment of the underlying disease, can be given aminophylline, Angio progesterone, Protirelin, etc. to improve the central respiratory drive. 3.Surgical treatment. The choice of surgical method depends on the site of airway obstruction, severity, whether there is morbid obesity and systemic condition to decide. The commonly used surgical methods are as follows. 1.Tonsillectomy and adenoidectomy: This type of surgery is only used for pediatric patients who have tonsils and adenoids due to hyperplasia before puberty. Generally effective in the short term after surgery, with youthful development, the tongue and soft palate muscles can still recur after development. 2, nasal surgery: due to nasal septum curvature, nasal polyps or turbinate hypertrophy caused by nasal airway obstruction, septoplasty, nasal polyps or turbinate removal is feasible to reduce symptoms. 3.Tongue plasty: Tongue plasty is feasible for those who have enlarged tongue, giant tongue, receding tongue root and enlarged tongue tonsils. 4.Uvulopalatopharyngoplasty: This surgery is to remove the posterior edge of the soft palate and the loose mucosa of the lateral pharyngeal wall of the palatal lobe, and to pull the mucosa of the lateral pharyngeal wall forward and tighten the suture, in order to relieve the obstruction of the soft palate and oropharynx level airway, but not to lift the airway obstruction of the hypopharynx, so we must choose the right indication. 5, orthognathic surgery: (1) mandibular anterior migration: this type of surgery can relieve obstructive sleep apnea syndrome caused by mandibular dysplasia and mandibular recession. As the mandible moves forward, the chin-lingual muscle and chin-lingual muscle also move forward accordingly, tugging the tongue root forward, thus expanding the pharyngeal airway. The anterior mandibular migration is usually performed by sagittal splitting of bilateral mandibular branches. (2) Anterior chin migration: This type of surgery is suitable for obstructive sleep apnea syndrome without obvious chin retraction. The operation is to preserve the lower edge of the mandible, and the osteotomy at the chin is pulled forward like a “drawer” together with the chin tongue muscle. The osteotomy block is rotated 90° and fixed. (3) Anterior chin migration, subglottis muscle group cut off suspension: this type of surgery is in addition to the above-mentioned anterior chin migration, at the same time cut off all subglottis muscle group attachment on the hyoid body and hyoid bone large angle, so that the hyoid bone is also forward and upward displacement, and then suspended on the mandible with autologous broad fascia. This type of surgery is of great benefit in expanding the oropharyngeal and hypopharyngeal cavities, while not changing the relationship and not requiring intermaxillary fixation, and can be performed as a separate surgery or as an adjunct to other surgeries. (4) Bimaxillary anterior migration, chin anterior migration and hyoid anterior migration: This type of surgery includes standard maxillary LeFortI type osteotomy and mandibular branch sagittal splitting osteotomy to move the maxilla and mandible forward, and simultaneous chin osteotomy anterior migration, hyoid muscle group cutting and suspension. This procedure not only allows the maxilla and mandible to be moved forward sufficiently to improve the airway, but also improves the shape and relationship of the face. Since the surgery is so extensive, it is necessary to strictly control the indications for surgery, especially to identify the central sleep apnea syndrome and the mixed sleep apnea syndrome, because these two syndromes cannot be cured by surgery alone. The risk of surgery is very high in patients of advanced age, severe obesity, and systemic organ dysfunction, so great care should be taken. The treatment of patients with sleep apnea syndrome depends on the specific situation of the patient, as there are more surgical sites and options, generally speaking, oral and maxillofacial surgery is better and more comprehensive in the treatment of patients in this area.