Abstract：It is a rather well-known fact that slope hazards are resulted from the coupling of the Earth¢s endogenic and exogenic geodynamic action processes. The endogenic and exogenic geodynamic forces which are relative to slope evolution can be called geodynamic factors. In order to describe the influence of each geodynamic factor contributing to slope hazards in the coupling system，fuzzy comprehensive judgment(FCJ) method is applied；and a geodynamic zonation model based on FCJ-GIS theory is built up to show coupling intensity of geodynamic factors. The zonation model combined with the static environmental elements of the slope can be used to evaluate the slope hazards risk or to forecast the degree of geological hazard occurrence. Through the case study of slope hazards in Tiger-leaping Gorge，the results indicate that there are 88% hazards lying in high geodynamic intensity zonation regions，and then the static environment conditions to risk zonation analysis are unified，nearly 95% hazards in high risk zone. The data prove that the method of slope hazards risk evaluation based on FCJ-GIS geodynamic zonation model is feasible and correct；and the model can provide a new way for slope hazards risk evaluation or forecast.
