Abstract: It is only a 35-km distance from the Fubian River fault to the large-scale Jinchuan hydropower station, Dadu River, Sichuan. Thus the currently intense seismic activities should be considered as important factors in the evaluation of the stability of the hydropower station. The evidence and activity of the fault are examined on the basis of geophysics, seismology, geology and geomorphology. The fault has been found, for the first time, to dissect the Quaternary strata, however it has no harm to the safety of the hydropower station.