Abstract：The stability of the abutment rock mass is directly related to the stability of the arch dam. The abutment of the Jinping I Arch Dam situated in the Southwest China is in a complex geological condition，whose treatment measures contain 7 layers of dense cavities. The VisualGeo 3D modeling system was adopted to establish the 3D rock mass classification geological model of the project and to establish the cavities model of the resisting rock masses reinforcement. Based on the models，simulated excavations of abutment slope and cavities reinforcement of the resisting rock masses were performed；the 3D rock mass classification geological model of reinforcement cavities was obtained，and slicing analyses of the 7 elevations was undertaken. A precise visual analysis platform was presented for the design and construction of high dam abutment treatment.
