Corporate governance plays an important role in firm profitability and also it affects the firm’s financial success. Board composition considered the most important aspect of corporate governance mechanisms. Therefore, this paper aims to explain the impact of board size, board ownership, board compensations, role duality and number of board meetings on financial performance for the companies listed in Palestine Exchange over the period from 2005 to 2015. The paper used panel data regression and concluded that role duality and number of board meetings have positive impact on firm performance.