Abstract: In order to realize the automation and humanizing of fully mechanized coal face, on the basis of fully analyzing the development and applications of cont rol technology in fully-mechanized coal face at home and abroad, the paper designed centralized control system of devices in fully-mechanized coal face, including lots of technologies, such as control, ethernet, video, wireless, communication and supervisor etc, which automatically centralized control of fully-mechanized coal mining d evices in the roadway control center. The paper introduced the application effect of system in No. 4109 working face, No. 1 underground mine, Pingshuo Group, and an alyzed the system problems and the key technology to be resolved in the application process.