In order to overcome the shortcoming of frequently used method which gives weight subjectively,this paper,based upon the comprehensive evaluation index system constructe d,uses entropy method to do a compre-hensive valuation of performance of non -state -owned banks and comes to a conclusion that this method is rea-sonable.At the same time,the authors regard the entropy method,which gives weight objectively based on the information given by the index data,as a simple and feasible scientific m ethod.