Abstract: Objective：Summarize the characteristics of urodynamics in patients with pelvic reconstructive surgery，and with PFIQ-7 questionnaire research，to discuss the relationship between pelvic reconstructive surgery and the stress urinary incontinence（SUI） surgery. Methods：Retrospectively analyzed the 129 patients who were done Prolift reconstructive surgery only from July 2012 to January 2014，all the people were divided into pelvic organ prolapse（POP）+SUI group（26 cases） and POP group（103 cases）, according to whether they were suffering SUI or not， compared the urodynamics results and urethral function in each age brackets between the two groups. PFIQ-7 questionnaires were then used to survey the last 60 patients（POP+SUI group：13 cases; POP group：47 cases） with pelvic reconstructive surgery before surgery and six months after surgery. Results： Score of Aa was higher in POP+SUI group[（2.133±0.417）cm] than POP group [（1.417±0.612）cm]，significant differences were detected between the two groups（P=0.027）. No significant differences were detected in urodynamic results except maximum urethral pressure and maximum urethral closure pressure（P=0.032；P=0.029）. Significant differences were detected in PFIQ-7 questionnaire total scores before and after surgery in the two groups respectively（P=0.021；P=0.047）, no significant differences were found between the two groups after surgery in PFIQ-7 questionnaires（P＞0.05）. Conclusions：Urodynamic was suggested before pelvic reconstructive surgery，and SUI prevention should be cautious in the pelvic reconstructive surgeries, ages, urodynamiacs and clinical materials were need to take into consideration.

Key words: Urodynamics, Urinary incontinence, stress, Pelvic floor, Reconstructive surgery