The modified Hellers myotomy for esophageal achalasia is known as the best procedure. A properly performed transthoracic esophagomyotomy is essential to prevent complications. But it has some problems such as persistent achalasia due to inadequate myotomy, recurrence due to the healing of myotomy and reflux esophagitis due to destruction of the lower esophageal sphincter. The methods of the reoperation after esophagomyotomy for achalasia of the esophagus consist of 1 ] for persistent achalasia due to inadequate myotomy, additional myotomy feasible. 2] for esophageal reflux, a long-limb jejunal gastric drainage after vagotomy and hemigastrectomy, jejunal after conservative resection for stricture. We experienced 3 cases of reoperation after esophagomyotomy for achalasia of the esophagus. The 1st and 3rd case belongs to 30 cases which were undertaken the primary operation at the National Medical Center from 1961 to 1984. The 2nd case was undertaken the primary operation at other hospital. The 1st and 3rd case were reoperated because of persistent achalasia due to inadequate myotomy and 2rid case was caused by stricture due to reflux esophagitis. The methods of the reoperation were additional myotomy in 1st case, esophagogastrectomy and lower thoracic esophagogastrostomy in 2nd case, and esophagogastrectomy and mid-thoracic esophagogastrostomy in 3rd case. All three cases were complicated with postoperative reflux esophagitis.