CRM, for a number of businesses, is a critical approach to sustain competitive advantage. This study had established dimensions to evaluate the performance of CRM. First of all, this study acquired eight critical dimensions by factor analysis. Second, by using AHP, tried to figure out the weight of each dimension, and, according to the range of AHP, found out the most important four dimensions that are accumulated over 75% accounted for performance of CRM. Finally, used three levels of strategic hierarchy, four dimentions can be made a set of strategy and a suitable solution to upgrade the performance of CRM.