Tracheal rupture is a rare complication of tracheal intubation, but may result in pneumothorax, mediastinal emphysema, subcutaneous emphysema and other serious outcomes. Risk factors associated with tracheobronchial rupture include multiple vigorous attempts at intubation, inexperienced operator, intubating stylets, tracheal abnormalities, overdistension of tracheal or bronchial cuff, repositioning of tube without deflating the cuff, chronic obstructive airway disease and vigorous coughing while being intubated. We report a case of tracheal rupture after using single lumen endotracheal tube. A 41-year-old, 53 kg, female was operated for a repair of anterior cruciate ligament under general anesthesia in other hospital. Two hours later after the end of operation, facial swelling, dyspnea and chest pain developed. Chest computed tomography showed mediastinal emphysema. She was transferred to our hospital and bronchoscopy showed a rupture at posterior part of membranous portion 2 cm proximal to carina. Trachea was repaired and she was discharged from the hospital without complication.