The industrial control systems have entered to the era of networked control.The research and development of networked industrial control systems become an important trend in the fields of manufacture control,process control,measurement and control. The main aspects of the design and implementation for the networked industrial control systems are systematically described,inclu- ding the architecture of the systems,time delay,clock synchronization,control algorithm and node sensor/controller.Some research problems of networked industrial control systems are also pointed out.