Abstract: To promote undergraduate's knowledge of gear machining principle,it is necessary to develop an experimental device for gear hobbing and milling which integratesthese two kinds of function together.On the basis of analyzing the function of this device to be realized,a scheme which utilizes programmable logic controller(PLC)as central hardware and touchscreen as human-machine interface was brought forward and the hardware and software of control system were developed in this paper.After application of this equipment to the teaching,it was shown that the experimental device and control system is reliable,easy to operate,and intuitive process.It provides not only a platform for gear manufacturing experiment in subject like machine principle,but also provides a platform for stepping motor control and PLC programming practice in subject like mechanical-electric drive control.