Abstract:The aim of spatial prediction for regional landslides,mainly by analyzing the rule of historical landslides distribution,is to point out the regions that are relatively dangerous. On the basis of MAPGIS software and its customizing,two methods,semi-quantitative and quantitative one,are adopted to forecast regional landslides in Yongjia County of Zhejiang Province. In semi-quantitative method,the harassing coefficient reflecting the intensity of historic landslides and the susceptible index are used to evaluate regional landslides;and hazard zoning map is obtained. In the quantitative method,information value model and method of regular grid are adopted to predict regional landslides. Then,the hazard zoning map is compiled by the results of the information value,which provides scientific references for decision-making about land planning and buildings construction for local government. At the same time,by the results of two methods,the relationships between landslide formation and influential factors are analyzed so as to make landslides prevention feasible.