Proceeding from the geological hazards regionalization and on the b asis of the spatial analysis principle of GIS, the author has established th e spatial analysis model system for assessing development intensity, harmfulness and danger degree of geological hazards. The system consists of a series of ind ividual model including harmfulness assessment model, development intensity asse ssment model, development trend prediction model, danger degree prediction asses sment model and land importance degree assessment model. The assessment process of the model begins with the individual geological hazard and the prediction as sessment results of danger degree of geological hazard that have been obtained by themultistage assessment method. Based on the perfect structure of model assessme nt, the author has determined the individual assessment factor and concrete asse ssment parameter of each model. The assessment results reflect the regional regu larities of distribution and development of geological hazards and are of prime significance for the prediction, prevention and harnessing of the geological haz ards.