Objective.To analyse the efficiency of two operations for treatment of unirary stress incontinence （USI）. Methods. The clinical data of 95 USI cases or accompany USI treated by surgical procedures （Kelly operation 63 cases

Colposuspension 32 cases） was analysed retrospectively in our department. Results.The cure rates during three months after operation were 92.9% in Colposuspension group and 68.9% in Kelly operation group （P<0.05）

and decreased to 73.7% and 57.5% one year after operation in Colposuspension group and Kelly operation group respectively （P>0.05）. Abnormal senses rates of sexual intercouse was 3.7% in Cloposuspension and 7.3% in Kelly operation group. The length of retaining Folly catheter after Colposuspension was more than Kelly operation. [WT5”BX]Conclusion.[WT5”BZ]The cure rate during three months after Colposuspension is better than Kelly operation. But the cure rates during one year after surgery are the same in two groups.