Objective To investigate the application effect of the fast-track surgery in rectal cancer surgery.Methods 90 patients wnderwent rectal cancer surgery were randomly divided into two groups,45 cases treated with conventional perioperative treatment were selected as the control group,45 cases with rapid rehabilitation of surgical techniques used in the perioperative treatment were seoected as the observation group.Results The first defecation time of the observation group (2.2 ± 0.5) d,for the first time the exhaust time was (1.5 ± 0.4) d,length of stay (6.2 ± 1.8) days,the cost of hospitalization (1.25 ± 0.21) million.The control group were (3.8 ± 0.6) d,(3.5 ±0.8) d,(9.2 ± 2.5) d,(1.98 ± 0.32) million,the difference were statistically significant (all P ＜ 0.05).1 patient (2.22％) had complications in the observation group,7 cases(15.56％) complications occurred in the control group,which was significantly higher than the observction group,the difference was statistically significant (P ＜0.05).Conclusion The rapid rehabilitation of surgical technique in rectal cancer can promote the rehabilitation of patients,reduce the incidence of complications,shorter hospital stay,lower medical costs.