Based on the embedded technology, network communication technology and intelligent technology to the latest achievements, the embedded intelligent, modular, networked CNC system was put forward, and the overall structure and each intelligent module of function, effect and the bus technology in application were elaborated. By using the embedded technology to the design of the system, the effect of module, intelligent and network could be achieved, and the cost performance of the system effectively improved. The system resources could be fully used and expanded in convenience, with reconstruction of architecture. At the same time, it can achieve a very good remote monitoring, and have a certain reference value to research on intelligent CNC system.