Between 1994 to 1998, 7 patients had taken emergency operations by iatrogenic esophageal perforation. To evaluate patterns of injury, clinical presentation, and treatment options for patients, we reviewed all the 7 patients who had gotten transmural injury to the esophagus during dilatations or stenting procedures at our hospital. The primary diagnosis of the patients were as followings , two were achalagia and remaining five were corrosive esophageal strictures. Chest pain, fever, tachycardia were the early signs after esophageal perforation. The sites of perforation were thoracic esophagus in all cases and all of them underwent operation within 8 hours of initial injury. There were no postoperative mortality. Complications were developed three cases： stricture of anastomotic site, mediastinitis due to graft failure of colon and pleural empyema.