From 1990 to 1994, 10 patients were treated for tracheobronchial injury due to blunt trauma. 7 injuries resulted from motor vehicle accident. Common presenting signs included subcutaneous emphysema, dyspnea and hemoptysis. The most common radiologic findings were pneumothorax, pneumomediastinum and hemothorax. The fiberoptic bronchoscopy was highly accurate method for the diagnosis. The operation method is simple closure except one patien underwent right pneumonectomy. One patient died because of respiratory distress and 9 patients recovered uneventfully and returned to normal activity. Early recognition and proper treatment of tracheobronchial injury is important.