Some patients have no obvious breath-holding during sleep, and no hypoxic condition is found during night monitoring, but only loud snoring, which is called simple snoring. Snoring is produced by vibrating the surrounding soft tissues during sleep due to the high speed of airflow through the narrow airway. The snoring sound made by simple snoring patients when they sleep is uniform and regular, and the sound is of the same height, and is usually not accompanied by apnea. However, simple snoring affects the sleep of others to a certain extent. Meanwhile, studies in recent years have found that snorers still have symptoms such as daytime drowsiness, fatigue, lack of concentration, headache and reduced work efficiency, etc. Moreover, studies have shown that the incidence of heart and blood diseases such as hypertension and cardiac arrhythmia has increased among snorers compared with normal people. Because of the common pathophysiological process with obstructive sleep apnea syndrome, some snoring patients eventually develop into obstructive sleep apnea syndrome, so it is necessary to intervene clinically. At present, the conservative treatment of simple snoring can be adopted as follows: (1) Behavioral treatment: try to use side sleep to prevent the tongue root from drooping back, and if necessary, use the “tennis ball technique”, that is, a tennis ball sewn on the heart, so that once the sleeping position changes to supine after sleep, the tennis ball will stimulate the back and automatically change to side sleep; (2) reduce (3) Avoid excessive alcohol consumption, because after drinking alcohol, the muscles will be further relaxed and the obstruction will be aggravated. 2, appliance treatment: At present, the main oral orthodontic appliances. The principle of oral appliances is to make the lower jaw shift forward and downward, due to the mandible and chin tongue muscle, chin tongue muscle pulling, so that the hyoid bone, tongue root and tongue body forward, so as to lift the obstruction of the oropharynx. The advantages are safe, non-invasive, reversible conservative treatment, easy, comfortable, economical, portable, and not easily damaged. Few complications. Patient discomfort is mild, usually: transient excessive salivary secretion, sore cheeks in the morning, transient occlusal discomfort, and most patients adapt after 3-7 d. Contraindications: Not indicated for patients with severe periodontal disease, severe edentulism, and severe TMJ disorders. The presence of nasopharyngeal disorders may hinder the performance of the oral orthosis. Obstructive nasal tract disorders should be excluded before fitting, and severe turbinate hypertrophy, nasal septum deviation, nasal polyps, etc. should be treated surgically first to ensure nasal tract patency. 3, minimally invasive surgical treatment (1) radiofrequency treatment: plasma radiofrequency ablation is to use the energy generated by bipolar radiofrequency to convert the electrolyte (saline) between the radiofrequency head and the tissue into a layer of ionic vapor called plasma (i.e., high-speed movement of ion flow). The charged particles (Na+ and CI-, sodium and chloride ions) in the plasma are accelerated by the electric field and break the molecular bonds of the cells, causing the cells in the target tissue to gradually disintegrate as small molecules. Since this effect is limited to the superficial layer of the target tissue, and the target tissue cells are disintegrated in a low temperature environment of 40-70°C, it is also called low temperature radiofrequency. Application of this device in the soft palate selected points zapped into the muscle layer can cause partial tissue necrosis, fibrosis, harden the soft palate and reduce snoring. It can be operated repeatedly. The disadvantage is that the imported RF55 cutter head is disposable, one person one cutter head, and the cost is relatively high. (2) pillar implant system: Pillar surgery is a new minimally invasive surgical method for treating OSA HS. Its mechanism is to implant three PET implants in the palate, which directly strengthen the soft palate through the implant fibrosis reaction and surrounding tissue fibrosis, change the airflow dynamics of the upper airway, alleviate snoring symptoms, and relieve the breathing disorder caused by soft palate collapse. The procedure has the following characteristics: the original physiological function of the soft palate is maintained, there is no foreign body reaction, the implant is a biocompatible material, it can be well fixed and retained by the tissue at the implantation site, it has a permanent tough effect and permanent curative effect, the operation process is reversible, and there is no damage to the tissue. The disadvantage is that the technology is relatively new, the lack of long-term follow-up, long-term efficacy remains to be observed, while the cost is high. (3) Local sclerotherapy: the most reported is the application of sodium n-tetradecyl sulfate (previously used for the treatment of varicose veins) injected into the soft palate near the root of the uvula to cause local sclerosis to reduce snoring, the advantages are simple operation, few complications, low cost and repeatable operation. (4) Special suture technique of soft palate: it can be performed under local anesthesia, which can cause the local soft palate to move forward, mildly shorten and partially harden, with the advantages of simple operation, light postoperative pain, basically does not affect eating, does not require special equipment, so the cost is low and can be repeated. In conclusion, all the above surgical operations aim to partially harden the soft palate tissue to reduce the soft tissue vibration amplitude to reduce snoring.