Abstract: Taking the geological structure of the key factors restricting intelligent mining of coal mine as the research object, and the engineering background of intelligent mining 15-17-11110 as the engineering background. Combined with the drilling disaster control project of the bottom pumping roadway through the layer gas, the geological structural characteristics such as drilling peeping, drilling trajectory measurement, intrahole geophysical multi-parameter logging, and in-hole coal-rock interface identification are used to comprehensively identify the thickness of the coal seam on the working surface, the undulating of the top and bottom plates of the coal seam, faults, folds and other geological structural characteristics. And the use of digital technology, VOX-3D software to achieve the three-dimensional display of the working surface geological structure. The results show that the types of geological structures include faults, slip-off structures, folds and flex folds, which are related to hidden disaster causes such as gas enrichment in thick coal belts, gas gushing out of fault belts, roofing of faults and their fracture zones, semi-coal rock mining, excavation surface gas and coal dust explosions. The predicted geological structure, coal seam thickness, and undulating form of the top and bottom plate of the coal seam are basically consistent with the recovery and recovery disclosure, and the optimized engineering scheme eliminates the blind spot of gas extraction, provides a basis for disaster prevention and control in the geological structure area, and ensures the safe, efficient, green and intelligent mining of the working surface. The research results can guide the deployment of underground mining projects in coal mines, and provide transparent geological support technologies for safe, efficient and intelligent mining in coal mines.