Application education about object-oriented hybrid symbol system of vector-raster

Symbol system is an important part of GIS system and CAD system. Analyzing the symbol systems of popular GIS systems and CAD systems, find out their merits and faults; and considering the requirement of geological field as mine and geological hazard, a vector-raster hybrid symbol system was designed. The paper introduced the main theory and key model of the symbol system, and introduced the advantages. And finally the fact is that the technology is feasible and could be widely used.