Abstract: Objective To evaluate the clinical characteristic and treatment effect of 69 cases senile colorectal carcinoma. Methods All patients received operation, 39 cases received miles operation,and 20 cases received Dixon method,and 10 cases receive appeasement resection,63 cases received radiotherapy and/or chemotherapy. Results The occurrence rate of complication after operation is 40.8%;and 54 cases obtained follow up.The one year survival rate is 60.9%,two year survival rate is 55.1%,and five year survival rate is 40.6%. Conclusion The reason that the five-year survival rate is low not because the recurrence of cancer or high metastasis rate but the incorrect and untimely treatment .In order to improve success rate of operation and reduce mortality of arrounding operation period,we should emphasize the preoperation treatment of complication.The patients with good condition should be given radical oper ation.The polients who couldn't receive radical operodion should be giren appease ment operation and radiotherapy and/or chemotherapy ofter operation.