The focus of this study is on the effects of customer knowledge management on business performance through the use of structural equations modelling. Using the resource-based view and knowledge-based view of the organizations, hypotheses are developed concerning customer knowledge management and business performance. By using convenient sampling method, the data was collected from 331 respondents who working in enterprises with different industries and scales. To achieve the purpose, along with the review of concepts such as customer knowledge management and business performance, the dimensions of customer knowledge management and business performance have been identified with regard to the research literature. Each variable in the model is measured by a number of scale items. Both reliability and validity (content validity, convergent validity, and discriminate validity) are demonstrated. The results of structural equations modelling (SEM) show that (1) customer knowledge management has positive impact on business performance; and (2) Of the three dimensions of customer knowledge management, knowledge from customer turns out to be the strongest predictor of business performance.