This paper will introduce a PC-Based linear motor drive control system, because this control system has an open, scalable and low price, so the use of various industries in recent years more and more widely. This system use a set of industrial computer as the control and configure the input and output on the computer, digital/analog conversion, and movement and visual devices such as adapters to receive the return of the state by an external feedback signal, to operations ,and output signal control of linear motors to guides the machine moves. The control system can be equipped with a microscope boxes, laser, charge coupled device (CCD) camera can be taken as function to detect and repair. It can be widely used in nanoscale semiconductor and thin film transistor liquid crystal display (TFT- LCD) test equipment.