Abstract: Because of the deficiencies of operation and maintenance platform in the unattended stations in Nanjing seismic network, the visual operation and maintenance platform of seismic station based on 3D model and GIS technology is designed. Compared with the current technology system, this platform achieved the multi-faceted and multi-form display of the operating status for the station equipment. It is able to automatically judge the location of the fault point of stations in real-time to enhance troubleshooting efficiency and improve the unattended stations in Nanjing seismic network effectively.