回顾 48例老年大肠癌肠梗阻 ,就诊时间晚 ,术前能定性定位确诊的机率低 ,右半结肠癌梗阻均作Ⅰ期切除吻合 ,无手术并发症 ,左半结肠视具体情况而定。认为术前B超或CT检查能帮助初步明确梗阻部位及原因。年龄不是手术危险的主要因素 ,术中应视具体情况合理选择方式 Retrospective review of 48 cases of colorectal cancer with intestinal obstruction, late treatment time, low probability of preoperative localization to confirm the diagnosis, right colon cancer obstruction are for a resection and anastomosis, no complications, left colon as the case may be. It is believed that preoperative B-ultrasonography or CT examination can help determine the site and cause of obstruction. Age is not a major factor in the risk of surgery. During the operation, reasonable choices should be made depending on the circumstances.