The parallel slider system can be configured as a parallel robot by combining with other link devices. Therefore, the degree of positioning of the parallel slider would have considerable influence on the smooth operation of the parallel robot. In order to examine the degree of positioning of each slider, the following trajectory is equally presented, and the possibility of tracking the slider trajectory examined by application of the PD and PND control. From the experimental results, the dynamic characteristics of the slider show different responses to differing equivalent frictional forces acting on the slider. The PND control can make the rise time shorter than the PD control, and the PND control and PD control can smoothly follow the same trajectory given to each slider. It is therefore anticipated that the PND control and the PD control could be successfully implemented to follow the trajectory of a parallel robot based on a parallel slider system. It would then be necessary to fabricate slider experimental equipment capable of generating torque of sufficient magnitude to successfully reduce the trajectory error of the slider.