Abstract: Proper seismic excitation means and equivalent viscoelasticity constitutive model were adopted, and the FEA dynamic characteristics of asphalt concrete core rockfill dams on deep overburden(147.95 m) were studied in very detail in this paper. In the study, the author analyzed the characteristics of stress and displacement in the dam body and cutoff wall with deep overburden in the intensive earthquake zones. The results show: severe earthquake demolishment won’t appear in the dam body under seismic loading, but it cannot be concluded that partial cracks won’ t appear in the dambody; stress concentration regions exist in the cutoff wall, and the regions should be reinforced locally.