Abstract: Objective To evaluate the effect of anastomosis of the cecum and anus preserving the ileocecal valve through the rectal muscular cuff in the treatment of benign colorectal diseases.Methods Eight cases including 5 ulcerative colitis and 3 familial adenomatous polyposis treated with this surgical procedure between 1990 to 2000 were retrospectively reviewed.Results During the 5 to 10 years of follow-up, no relapse, wound infection or anal fistula occurred in these patients, who had normal urination and sexual functions. The bowel movements decreased to 3 to 5 times a day within 8 to 10 weeks after the operation, and recovered to normal status (1 to 3 times a day) in 3-4 months.Conclusion This surgical procedure could produce clinically satisfactory result in the cases of ulcerative colitis and familial adenomatous polyposis.