Objective:To approach the prevention and the management to the complications of 915 patients with rectal cancer after Anterior Resection (A.R.) from May 1975 to 2005. Methods:The clinic data of 915 patients with rectal cancer who underwent anterior resection (AR) was analyzed. Results:After AR,28 of 915 patients (3.06%) suffered from stoma leak and 24 patients（85%,24/28）with stoma leak were cured by expectant treatment.Sex,stapler,serious anemia and serious hypoproteinemia were significantly correlated with stoma leak.6 of 915 patients (0.66%) suffered from stoma hemorrhoea and 5 patients (5/6) with stoma hemorrhoea were cured by operation.38 of 915 patients (4.15%) suffered from stoma stenosis and all relieved after enlarging anus. Conclusion:Stoma leak,stoma hemorrhoea and stoma stenosis were three serious complications of AR.in rectal cancer,so we must think high of them.