Results: Compared with patients who did not have SSIs group, the group of patients with SSIs (115/1416 patients with abdominal surgery, accounting for 8.1%) with an average total hospital days were: 19.34 ± 11.8 days, more group of patients with SSIs was 8.7 ± 7.09 days (p <0.001), total treatment costs average: 10.11 ± 6.99 million, higher than for patients with SSIs is: 4.22 ± 3.35 million.