Based on 3D nonlinear dynamic FEM method, taking a high concrete faced rockfill dam (CFRD) as study object, a set of comprehensive seismic safety evaluation method for the dam is proposed. The acceleration response and shear stress response, the stress and joint displacement of the concrete face, the earthquake-induced permanent deformation, the element anti-seismic safety, the dynamic stability of dam slope are studied. The proposed evaluation method and conclusions are valuable for engineering construction.