As far as the current research status, total colectomy or subtotal colectomy has become the preferred type of surgery for slow-transit constipation treatment. There are different opinions on intestinal anastomosis and the specific scope of excision. There is a type of surgery reserving the ileocecum, as the ileocaecal valve has the function of postponing the fecal evacuation. There's also a type of surgery excising the ileocecum , and establishing the pouch, as reserving the ileocecum may cause the recurrence of constipation, and establishing the pouch has function of relieving the postoperative fecal incontinence. On the basis, our own type of surgery is designed; ileocecum is excised for preventing the recurrence of constipation, while the anti-peristaltic ileosigmoid anastomosis between the small intestine and part of sigmoid is made for preventing the severe diarrhea.