In this paper, the first example of Liaoning Engineering Applications Auto CAD 2007 campus on campus buildings, grounds, lawn and ancillary facilities in three-dimensional modeling, and research through the operation to three-dimensional Auto CAD 2007 modeling techniques and methods more sophisticated and flexible, after the three-dimensional model of Auto CAD 2007 application, built a good model classification after adding a good layer in the Arc GIS 9.2 software loaded into the Arc GIS 9.2 to achieve three-dimensional digital campus. Finally, three-dimensional modeling of operations and research and in the Arc GIS 9.2 software, 3D Digital Campus to three-dimensional modeling and Auto CAD 2007modeling of a detailed comparison 3DS MAX three-dimensional modeling identify than other 3D software is more suitable for the advantages of GIS.