Abstract: In view of problem that current surface-volume hybrid modeling method for ore body divided a number of subblocks at boundary of surface model and interior volume element model, while calculation amount of subblocks will increase rapidly along with accuracy, the paper proposed an ore body modeling algorithm based on vector-grid integration method. It studied implementation of algorithm of intersection inspection of surface model and volume element model, algorithm of sectioning intersection volume element with ARTP volume element. The algorithm adopts divisional volume elements instead of subblocks and improves calculation accuracy and reduces data redundancy.