ObjectiveTo evaluate the incidence rate and risk factors for catheterassociated urinary tract infection （CAUTI）in patients with gynecologic malignant tumor surgery.MethodsA prospective and retrospective investigation was carried out on patients who received indwelling urinary catheter after gynecologic malignant tumor surgery from July 2010 to December 2011, and the risk factors for CAUTI were analyzed.ResultsA total of 353 patients who received indwelling urinary catheter after gynecologic malignant tumor surgery were investigated, 62 cases suffered from CAUTI, the infection rate was 17.56%; the duration of catheter use was 2 292 days,and the average incidence rate was 27.05 per 1 000 catheter days. Multivariate logistic regression analysis showed that cervical cancer (OR 95% CI：1.791-8.269) and the duration of catheterization(OR 95% CI：2.823-8.735) were the independent risk factors for CAUTI in inpatients with indwelling urinary catheter after surgery. A total of 60 pathogenic isolates were detected, 90.00%（54/60） were gramnegative bacilli，the top one was Escherichia coli（44 isolates，73.33%）.ConclusionThe incidence rate of CAUTI is high in patients with gynecologic malignant tumor surgery in this hospital, which can be reduced by improving skill in surgery and quality for urinary catheter care, and removing catheter timely.