: Multimedia assisted teaching plays a more and more important role in modern teaching. It not only can improve the teaching quality, but also provides a platform for the reform of traditional teaching mode and method. For at present classroom utilization rate is low, the fault report and maintenance is not timely, its separate control is not easy to manage, and so on, a set of centralized control system for multimedia classroom equipment is developed by increasing the necessary hardware on the basis of existing multimedia equipment, which is based on network and wireless data transmission technology. A main controller and its peripheral equipment interface circuit are designed, including hardware and software. The system can improve the utilization rate and service life of multimedia equipment, convenient the effective management.