Abstract: Based on the OpenGL three-dimensional model of mine system, using Visual Studio 2012 as the development tool, in VB.NET object-oriented programming language, the 3D virtual mine visualization model is studied by using the graphics and image technology provided by OpenGL and triangulation algorithm, and the virtual 3D mine visualization system with high generality, strong sense of reality and good man-machine interaction is realized, and has been applied in Pingmei No. 1 mine. The results show that the system can easily and intuitively understand the mine ventilation system and provide a reliable guarantee for the safety management of coal mine.