The　vibration　aging　is　an　important　means　to　eliminate　the　residual　stress　exiting　in　the　structural　parts.　We　establish　a　typical　aluminum　alloy　plate　finite　element　numerical　model　with　the　finite　element　method　and　acquire　the　natural　frequencies　and　the　corresponding　vibration　modes　through　the　modal　analysis.　At　the　same　time,　make　use　of　the　numerical　simulation　of　vibration　aging　process　of　aluminum　alloy　plate　to　study　vibration　aging　effect　in　different　vibration　frequencies.　©　(2014)　Trans　Tech　Publications,　Switzerland.