Abstract: The definition,technical connotation and characteristics of coal mine intelligent were systematically expounded based on the current status and requirements of intelligent development of coal mine. According to different coal seam occurrence conditions,intelligent unmanned mining pattern for thin and medium thick coal seam,intelligent and efficient man-machine collaborative inspection pattern for large mining working face,intelligent control and manual intervention to aid caving in fully mechanized caving face,mechanization and intelligent mining pattern for complex coal seam condition were proposed. The intelligent unmanned mining pattern for thin and medium thick coal seam was subdivided into the intelligent unmanned mining pattern of coal planer and the intelligent unmanned mining pattern of drum shearer,which depends on the difference of cutting process,working procedure and equipment. The key technologies of intelligent mining pattern of thin and medium thick coal seam,such as positioning,navigation and intelligent heightening technology of drum shearer,and high-speed cutting technology of half depth,were described in detail. The main technical bottleneck of intelligent mining of large mining height working face was analyzed. The key technologies of intelligent mining pattern such as intelligent coupling control logic of surrounding rock based on the coupling relationship between hydraulic support and surrounding rock and distributed cooperative control logic of heavy equipment group were discussed. The difference of intelligent mining mode between caving top coal face and full height caving face was analyzed,and the intelligent caving control logic and technological process based on time sequence control caving,automatic memory caving,coal and gangue identification caving were put forward. In view of the complex coal seam conditions,the technical ideas of using local intelligent mining to reduce the labor intensity of workers and improve the safety level of the operating environment were put forward.