Abstract: Aiming at the problems of complex gas drainage borehole design and low efficiency in coal mine planning, the gas extraction parameter design model of floor through-seam borehole and cross-cut borehole is put forward. 3D design program of gas extraction borehole is developed by 3DSMAX software platform, which is used to design gas extraction borehole on site. The results show that the gas extraction borehole 3D design is displayed by three-dimensional map and the report parameters. The three-dimensional graphics can be easily converted into plane or profile graphics and used in site operation. The parameters report gives out borehole operation parameters and quantities. By modifying the borehole design parameters, it can optimize the borehole design, and save drilling quantities and construction costs. The program design improves labor efficiency of engineers.