Abstract: According to the problem on no popularization and application of automatic seep regulation to the present belt conveyor, automatic speed regulation met hod of the belt conveyor was provided based on the video identification. In order to operate the speed regulation software on a computer at the surface ground, the avai lable video monitoring and control network and the equipment control network were applied to realize the automatic speed regulation of the belt conveyor. By the readin g of the video data, the speed regulation software could indentify a width of the coal on the belt of the conveyor as an input of the fuzzy coal quantity and with the knowl edge database and the fuzzy inferences, the speed regulation value was obtained. The plan was applied to the belt conveyor in No. 12306 coal mining face with 10 mini ng operation and one transverse in Xinglongzhuang Mine. The application result showed that the system was simple and easily implemented, the identification error of t he coal width was within 5% and the average speed of the regulated belt conveyor could be reduced by 10%. With the application of the system, the automatic level of belt conveyor could be improved, the energy saving and the consumption reduction would be realized, the mechanical wear could be reduced and the service life of the equipment could be prolonged.