Ventilator can be used for the majority of snoring patients as well as central and mixed sleep apnea and hypoventilation patients, especially for the old and weak patients who are not suitable for surgery or unwilling to have surgery, and those who have failed or have unsatisfactory effect of surgery, as well as the perioperative treatment of heavy snoring patients. Ventilator treatment of snoring is 100% effective and can show immediate effect. Due to various reasons, most of the people who seek medical treatment in China are patients with moderate or severe snoring. Long-term nocturnal hypoxia and sleep structure disorders lead to a series of pathophysiological changes, and patients are often accompanied by hypertension, pharyngeal tissue congestion, edema and other complications of varying degrees, and the body’s immunity, stress state, and tolerance to anesthesia and surgical stimuli will be reduced. The incidence of perioperative complications is as high as 10-20% and is closely related to the severity of the disease. If the critically ill patients are operated hastily and hastily, the risk of anesthesia and surgery is bound to increase. In recent years, there are often cases in which surgery leads to hemorrhage, asphyxiation, cardiovascular and cerebrovascular accidents, death, or patients in deep coma or even vegetative state even though it is not fatal. Therefore, surgery for snoring is said to be a high-risk surgery, and the surgeon should be careful and prudent, fully estimate the accidents and risks that may be caused by the surgery, and be well prepared in thought, plan, action and material so as to minimize the risk of the surgery. Most perioperative deaths in snoring are related to respiratory obstruction, so prophylactic tracheotomy has been adopted for critically ill patients. Tracheotomy can provide effective relief and improve the safety of the procedure, but it is not easily accepted by patients. Perioperative ventilator therapy can avoid tracheotomy and achieve the purpose of adjusting the patient’s physical state and reducing the risk of surgery. In the Guidelines for the Treatment of Obstructive Sleep Apnea and Hypoventilation Syndrome formulated at the Hangzhou Conference in 2002, it is recommended that patients with heavy snoring should receive preoperative ventilatory therapy for 1-2 weeks, and then undergo surgery after their condition improves. It is generally believed that preoperative ventilator ventilation can improve the patient’s surgical tolerance, increase the safety of surgery, and improve the efficiency of surgery. Perioperative ventilator treatment was performed on 12 patients with severe snoring, and it was found that after ventilator treatment, the AHI of the patients decreased, the clinical symptoms disappeared, and the blood pressure of the 4 patients with hypertension returned to normal after ventilator treatment, and no surgical complications occurred in all the patients, and the patients were routinely treated with ventilator for at least 3 days before the operation, and the general condition of the patients improved significantly, and the average minimum SaO2 increased from 71.5% to 82.1%, the average minimum SaO2 increased from 71.5% to 82.1%, and the average minimum SaO2 increased from 71.5% to 82.1%. The average minimum SaO2 increased from 71.5 % to 82.1 %, sleep structure improved, and some of the hypertension that could not be easily controlled by drugs was controlled, almost avoiding the preoperative tracheotomy. In addition, after hanging palatopharyngoplasty in snoring patients, especially 1-3 days after surgery, the condition may be aggravated due to local tissue trauma and edema, thus increasing the risk of postoperative airway obstruction, which can be prevented by ventilator treatment to reduce the risk of surgery by preventing the obstruction of the upper airway, and it can also avoid the aggravation of mucosal congestion and edema by local vibration during snoring in the postoperative period, which is conducive to the early healing of the wounds. After general anesthesia patients are extubated at the end of surgery, due to the residual anesthesia drugs in the body, the patients may suffer from tongue falling back for a period of time which may affect the smoothness of the airway, so the use of ventilator treatment can reduce the risk of extubation and improve the safety of anesthesia. Uvulopalatopharyngoplasty is an important treatment for snoring, but not all patients who undergo this procedure are successful. According to statistics, the effectiveness rate of unselective UPPP surgery is about 50%; after careful selection of indications, the effectiveness rate can be up to about 70%. Even so, there are still a considerable number of patients who cannot get effective relief of their symptoms after surgery, and ventilator therapy is still an important choice for this group of patients!