Based on cosimulation technology, the mechanicalelectricalhydraulic dynamic simulation model of feeding device was built. Dynamic simulations of the feeding processes at tilt angle 0°, 30°and 60°, oil temperature of 45、55、65 and 75 ℃ were carried out. By simulation analysis, the influences of oil temperature to the dynamic performance of the feeding device were obtained and the limits of functioning tilt angle at different oil temperature were pointed out.