介绍了步进电动机的发展史,及国内的现状和步进电动机未来的应用前景。并且阐述了步进电动机转速、角度、转矩的控制原理。本文阐述了一种步进电机控制器的设计方案，并绘制了原理图和PCB板图，撰写了程序源代码。实现了对步进电动机转速、角度的控制，并完成了实物的制作。这期间主要使用protel99se软件绘制原理图和制板，使用proteus7.1软件进行程序代码的仿真和功能的理论验证。最后通过硬件的调试验证程序代码的实际功能，完成对控制器的设计。-Introduced the development history of stepping motor, and domestic status and stepper motors prospects for future applications. And expounded the stepper motor speed, angle, torque control principle. In this paper, a stepper motor controller design, and drew a schematic and PCB board map, write the program source code. The realization of the stepper motor speed, angle control, and completed production in kind. The main use of this period Protel99SE software and system schematic drawing board, using the software program code proteus7.1 simulation and functional verification of the theory. Finally, hardware debugging code to verify the actual function, to complete the controller design.