We describe a technique which was employed for simultaneous drainage and enteral nutrition using a dual gastric tube from a gastrostomy for postoperative management of a gastroduodenal ulcer. Gastrostomy was performed and a 18 Fr. gastric drainage tube was inserted into the body of the stomach intraoperatively. A second tube was inserted into the jejunum through the gastric tube postoperatively. Use of the gastric tube for drainage and the second tube for feeding enabled an early start of enteral nutrition without consideration of the gastric condition. The technique is simple and could be beneficial for patients who experience complications such as minor leakage and severe pylorus stenosis, particularly those in older age group with dementia