Abstract: In order to improve level of intelligent mining technology and comprehensive coordination management technology in ten million tons of mines group,the def inition of ten million tons of coal mines group was cleared.The technology of coal cutter cutting automatically,.hydraulic support automatically move with coal cutter and top coal caving intelligently were studied based on electrohydraulic control system in Datong Coal Mine Group.The fully-mechanized caving intelligent mining system which wa s based on cloud computing technology was analyzed.The results showed that technology of coal cutter cutting automatically,hydraulic support automatically move with coa I cutter and top coal caving intelligently were foundation to achieve intelligent mining in fully-mechanized top coal caving face. The problems of mass data and handler com plex in fully-mechanized caving itelligent mining system were better solved based on cloud computing technology.The equipment was managed and allocated by equipme nt series spectrum,which improve the efficiency of use of equipment greatly.