Abstract: A large number of fixed frame format data used in communication between hydraulic support and monitor system can not be directly identified by configuration software, which is difficult to be treated. A new method is proposed to solve it. Through this method, each frame of data can be distinguished and established a dynamic link with the development of the control system screen by rough set reduction and VC programming method, which realizes serial communication between the hydraulic support monitor system and the monitoring system. Experimental shows that the method is feasible and stable.