Corporate governance has become a common discussion issue in developed and developing countries. Therefore, the intensive interest that the corporate governance determines firm performance and protects the interests of shareholders has result in increasing global concern about the corporate governance concept and determinants. There is an increasing forms of corporate finance literature which build a correlation between corporate governance techniques and financial performance. This study represents a new attempt to show the role of corporate governance characteristics on the performance of Jordanian Banks expressed by return on equity ROE during the period from 2014 to 2017. The investigation employed statistics measurements and tools to state the relationships between ROE and different variables. The study indicates a significant effects of different corporate governance characteristics on the performance of banks. In other words, the study reports significant effects of the board size, board diligence, audit committee size and audit committee diligence separately on ROE by considering two controlling variables; namely, firm size and return on assets.