Objective To investigate the effect of Miles laparoscopic sigmoid colostomy surgery for elderly patients with colorectal cancer .Methods The clinical data of 78 elderly patients with colorectal cancer underwent surgery were chosen .According to the different operation method , they were randomly divided into the observation group and control group ,39 cases in each group .The observation group was treated with laparoscopic Miles ,and the control group underwent surgery for abdominal Miles .The safety,efficacy,early complications of the two groups were analyzed and compared .Results The incidence rate of postoperative complication , excellent rate of ostomy surgery 6 months after operation in the observation group were 5.13%, 66.67%, respectively, which were better than 38.46%,20.51%in the control group (χ2 =12.70,9.69,all P<0.05).The defecate feeling of the observation group was better than that of the control group (χ2 =29.40,P<0.05).The difference of patients'quality of life and physical function between the two groups was statistically significant (t=3.30,P<0.05).Conclusion The clinical effect of laparoscopic sigmoid colostomy surgery Miles in the treatment of elderly patients with colorectal cancer is bet -ter than traditional open surgery ,it has obvious practical significance such as reducing the short and long term compli -cations and improving the quality of life of patients .