In this paper, we address energy efficiency optimization of belt conveyor for material scheduling problem. First, a new model of energy efficiency of belt conveyor is proposed, which is the foundation of the optimization problems. We take hourly material consumption and bounds on storehouse capacity into account to satisfy the claims of this paper. Then, three optimization problems of a typical belt conveyor system are formulated for material scheduling under various constraints. Finally, simulation results have been presented to show the validity of the proposed method.