The invention provides a pole parameterization modeling method in a three-dimension GIS system. The method comprises following steps: resolving a pole structure to obtain assemblies for pole modeling; determining modeling parameters of the assemblies, determining assemblies and the modeling parameters of the assemblies according to the assemblies and the modeling operation thereof, and parameterization modeling for the pole in the three-dimension GIS system. According to the method of the invention, the engineering effect after the establishment of electric transmission lines can be comprehensively, systematically and directly previewed by designers and audit personnel and the three-dimension display of electric transmission poles in a GIS platform is realized; the pole three-dimension model built with the method supports sharing and application within an engineering life period and the pole is seamlessly integrated with the landforms by means of a three-dimension GIS; the three-dimension geometrical model and parameter information are organically integrated and synchronously updated so as to realize optimization of the pole three-dimension model.