Stress urinary incontinence is one of the most common gynecological complains. The frequency of its occurrence is from 12 to 25 and even 60%. It is most often observed in patients after menopause, but in a few percent is also found in twenty and thirty years old women. During several years of searching the effective methods of stress urinary incontinence treatment, many operative techniques have been worked out, but none of them became a perfect one. The operation with the use of TVT tape is one of the newest methods of the stress urinary incontinence treatment. The aim of our study was the attempt of the estimation the TVT operation effectiveness in the treatment of stress urinary incontinence in women treated in Surgical Gynecology Department of Polish Mother Health Centre Research Institute in years 2000-2002. Performed analysis of 60 patients at the age between 38 and 76 years revealed that stress urinary incontinence symptoms regressed after TVT operation, as evaluated 7 days after the procedure. In 51.7% of patients anterior colpoplasty or colpoperineoplasty was performed simultaneously to TVT operation. Control studies were performed a month and six months after the operation. Recurrence of the symptoms was observed in 11.7% of the patients. Revealed data let us show that the efficacy of this procedure is very high and reaches 88.3%.