Abstract: With the rapid promotion of construction work of intelligent coal mines in China, the development of geological security system software for safe and intelligent coal mining has became an urgent task at present. This paper develops a coal safety intelligent mining geological security system software with MySQL8.0, VS2019, OpenGL and other development tools base on geological conditions of coal mines of Shaanxi Coal Group. The systemconsists of six subsystems：geological information management, integrated 2/3D modeling, mining geological condition evaluation and prediction, working face fine geological modeling, geohazard warning and geological big data analysis. Geological information management subsystem mainly stores and manages geological, surveying, geophysical prospecting and other information, and provides basic data for 3D geological modeling, mining geological condition evaluation and prediction, geohazard warning, fine geological modeling of working face and big data analysis. 2/3D integrated modeling subsystem can draw various 2D drawings and build 3D geological models to further provide coal mine geologists with the necessary drawings and visualized 3D models. Mining geology evaluation and prediction subsystem can evaluate the complexity of geological structure, evaluate and predict the risk of water surging from roof/floor, gas disaster and impact ground pressure, comprehensively evaluate geological conditions of mining and classify mine geological types, and provide 2D drawings and 3D models for workface layout and geohazard warning. Workface fine geological modeling subsystem can fuse various kinds of geological information such as workface roadway realistic printing, drilling and geophysical prospecting, to build a high-precision 3D geological model of the workface, and the model can update dynamically through those constantly changing information, and further provide planning cut-off data for intelligent workface retrieval. Geohazard warning subsystem can carry out distance warning and real-time warning of water damage, gas disaster and impact pressure disaster base on the evaluation and prediction 〖JP2〗results of mining geological conditions, census results of hidden disaster-causing factors and real-time monitoring data of hydrology, gas and impact pressure to provide disaster warning guarantee for safe mining of workface. Geological big data analysis subsystem can perform multi-source data statistical analysis, machine learning and deep learning, providing analysis methods for the utilization of coal mine geological big data. The navigation subsystem can be used to query the achievements of geological security system construction.This software system has been applied in Hongliulin coal mine, which basically meets the requirements of intelligent mine construction for geological security software system and supports safe and intelligent coal mining.