The central airway is the large airway, which includes the trachea, the rongeur, the left and right bronchi and the middle section of the bronchi. The human airway is the passage that supplies our body with oxygen and should be unobstructed at all times in order to provide the body with the oxygen it needs for life. When it becomes narrowed or occluded, it is equivalent to having something that curbs breathing and makes a person shortness of breath and shortness of breath. There are three main types of central airway stenosis. Intraluminal obstruction, extraluminal compression or both intraluminal obstruction and extraluminal compression. Its common etiologies are mainly: primary tracheo-bronchial tumors, metastatic tumors, tracheal and bronchial tuberculosis, inflammatory pseudotumors, foreign bodies and blood clots. In recent years, we have combined electronic bronchoscopy, argon knife, electric knife, cryo, stent placement, high-pressure balloon dilation and other interventional pulmonology techniques to create a set of safe, feasible and excellent airway opening techniques under local anesthesia firstly in the northwest region through electric knife, laser, microwave, argon knife and other airway ablation as well as endotracheal stent placement and high-pressure balloon dilation to treat central airway More than 1000 cases of central airway stenosis have been treated, bringing new life and hope to patients with central airway stenosis.