RESUMEN
<p><b>OBJECTIVE</b>To evaluate the effect and to explore the feasible model of 100% condom use programme (100%CUP) under existing policy and law milieu, so as to provide information for the adjustment of HIV/AIDS policy and intervention strategies.</p><p><b>METHODS</b>Information on knowledge, attitude and behavior of female sex workers (FSWs) in entertainment establishments were collected and followed by qualitative and quantitative analysis including: samples tested for Chlamydia; a repeated cross-investigation and the final evaluation on the effect of the programme.</p><p><b>RESULTS</b>The reported rate of condom use at the last sex activity with clients increased from 74.9% to 92.2% while the rate of sexually transmitted disease (STD) prevalence droped from 25.1% to 14.1% after three year's intervention program. The number of condoms distributed increased from 50,000 per quarter of a year in 2001 to over 100,000 in 2003. The rates of awareness on the knowledge of STD/AIDS prevention increased obviously.</p><p><b>CONCLUSION</b>The 100%CUP was proved to be feasible and effective in the pilot site, and should be expanded in entertainment establishments.</p>