Vendor selection is one of critical decision issues in the theoretical and practical circles. Many researchers in the field of management have paid attention to the vendor selection. This article applies Fuzzy-AHP(FAHP) to evaluate vendors in IS outsourcing projects based on risk assessment. In applying the method, it shows that it is very well suited as a decision-making tool for outsourcing vendor selection according to the example analysis. Finally, potential issues for future research are presented.