In order to make the division of geological disaster susceptibility in Yaozhou District of Tongchuan City,4 most representative townships were chosen and the main influence factors to geological disaster susceptibility were determined.The factors were types of rock and soil mass,physiognomy,annual rainfall,and human engineering activity strength,which were verified using fractal and fractal dimension theory.The relational degrees between each influence factor and susceptibility obtained by the grey relational analysis were taken as the evaluation weights of the MAPGIS spatial analysis.By superposition of different layers,the regionalization map of geological disaster susceptibility was finally completed.Result showed in the map was basically consistent with real situation.