Recently, the incidence of tracheal stenosis increases prevalent due to use of ventilator for airway management, tracheotomy and long term intubation. But, there are many problem in management of tracheal stenosis. The goal of management of tracheal stenosis are reconstruction of cartilagenous framework with mucosal lining after removal of the stenotic area and maintenance of effective tracheal lumen wit preservation of normal phonation. Tracheal stenosis had been handled with various methods such as mechanical dilation, granulation tissue removal under bronchoscopy, insertion of T-tube, tracheoplasty, tracheal resection with end to end anastomosis, and CO2 laser excision. So the authors analyzed 48 cases of tracheal stenosis that had been treated from 1983 to 1994. The results were as follows : 1) The most common cause of tracheal stenosis was tracheotomy(89.5%), and it was followed by long term intubation(6.3%), trauma(2.1%), and tracheal tumor(2.1%). 2) Nearly all of tracheal stenosis(97.9%) occurred in cervical trachea and tracheostoma was the most common site of stenosis(43.8%). 3) Grade I tracheal stenosis was most common(43.7%) and it was followed by Grade II(25.0%) & Grade III(25.0%) according to Cotton’s classification. 4) The success rates of each treatment, granulation tissue removal under bronchoscopy was 25.0%, insertion of T-tube was 53.2%, Trough method was 66.7%, and tracheal resection with end to anastomosis was 100.0%.