Since September 2009, eight cases of anastomotic fistula after radical rectal cancer have been conservatively cured, avoiding the trauma of secondary fistula and three fistula reductions, and avoiding great trauma to the patient’s body and mind, with an overall treatment time of about 15 to 25 days. Three of these cases are very representative. They are the fistula after rectal cancer intestinal obstruction, and there is a complication of severe abdominal infection, as well as a case of drainage tube not in place of such three cases, although very complicated, according to the principle should be fistula surgery treatment, but all have been conservatively treated successfully, the cost of 20 to 30,000 yuan. Wang Feng, Department of General Surgery, Affiliated Hospital of Inner Mongolia Medical University