Based on GIS

hazard forecasting of regional landslide hazards is studied; and the hazard zonation map is obtained

which presents the basic information for risk prediction and real-time alarm of landslide hazards. On the platform of MAPGIS software

professional module of information model for landslide hazards spatial forecasting and evaluation is obtained through customized development. By using the module

history and present landslide hazard risk are assessed separately in Yongjia County of Zhejiang Province using the data of history hazards and new hazards happened in 2004 of the county. Therefore

we can believe that the evaluation model can be tested by history hazard zonation map coupled with new hazards. And it is tested that the new landslide hazards with accurate locations happened during the 3 times of typhoon (Rananim

Haitang and Matsa ) period of 2004 and 2005

which indicates that the evaluation model has great practicality and availability. At the same time

zonation classes obtained by statistic method of history hazards coupled with the method of fast clustering analysis

which conquers the disadvantages in zonation

are more scientific and more objective.