Abstract: Similar principles were used to establish the mathematical model. By programming with matlab, it realized inputting basic parameters and rig parameters of the roadway, and got the hole length, azimuth, dip angle and final hole coordinates of final hole surface and between final hole surface and mining face. Ultimately it achieved three-dimensional display of the overall distribution of driving roadway and the layout of each cross-section drilling. Aiming at coal samples ahead of the working face of the trapezoidal driving roadway with outburst risks, it made drilling design and finished batch hole arrangements at one time.