The geological disaster evaluation is performed through the research on the distribution of geological environment conditions,the effecting factors of the geological disasters,time history,present condition and future potential geological disasters. In order to prevent and minimize the potential geological disaster,the distribution of geological disasters,which have already taken place,should be evaluated. The evaluation results can predict the occurrence of the geological disasters and avoid or reduce the death,injury and property loss. If the geological disasters are properly predicted,the development of the social performance,economical performance and the environment performance are coordinated and developed.