A new operative method - the sutureless esophagogastrostomy by intraluminal elastic circular ligation is reported. On the basis of successful animal experiments, the method was used on a total of 401 patients - 250 cases with non-absorbable supporting tubes and 151 cases with absorbable tubes. The results revealed that the method is simple in operation, tight and secure in ligation and without foreign materials left at the anastomotic region. The esophageal and gastric walls on the intraluminal supporting tube are incised by the elastic rings with initial incision pressure of 122.4 kPa. Breakdown of the ring occurs simultaneously with the healing process, taking about 9–15 days. The resulting anastomotic opening is smooth, with good contractility and expansion. The method has been perfected and can also be used in other bowel anastomoses, especially in hard exposed colorectostomy.