Intelligent mining of fully mechanized coal face is a great leap forward in the development of mining industry, is the general trend of the industry development. In order to realize the intelligent mining of fully mechanized coal mining face, taking 43207 working face of Yujialiang coal mine of Shendong Coal Group as the research object, the intelligent mining of working face is realized by 3D geological modeling technology combined with modern equipment. Firstly, the 3D transparent geological model of the initial working face is established through the data of the working face exploration and the later directional drilling rig exploration, and then the comprehensive coal-rock interface model such as the working face laser scanning is adopted, according to the surveying data of each shift, the 3D initial model is revised, and the accurate 3D geological model of the face is generated, setting up the expected cutting line, feedback the absolute position coordinates of the working face according to the electro-hydraulic control system, generate the next 10 knives cutting line of the top and bottom plate according to the advancing distance, and feed back the data to the electro-hydraulic control system, by its guidance Shearer in accordance with the planning line autonomous intelligent coal cutting; Then through the automatic coal cutting, machine pulling, remote intervention, inspection robot, three-dimensional laser scanning, Ethernet ring communication, panoramic video monitoring and other modern equipment technology to achieve intelligent mining face. The research results provide technical reference for domestic fully mechanized coal face intelligent mining, and play a good role in promoting the realization of intelligent mining technology in our coal mine.