Abstract: For the belt conveyor driven by motorised pulley, the influence of the drum and its internal components on the movement performance of the conveyor belt is discussed. Based on the integrated experimental platform of conveyor belt’s dynamical behaviors, An experiment of observing the transverse displacement of the conveyor belt under different driven speed by drum motor was designed. The results show that when the rotation speed of the drum motor is low, although the rotation of the drum shell does not cause the belt to resonate, inside the drum, the rotation of the middle transmiting shaft with gears will affect the movement of the conveyor belt, and even under certain speed conditions, result in conveyor belt’s resonance, which reduces the smoothness of the transport process.