Plastic　fastener　is　a　typical　strengthening　material　for　museum　movable　cultural　relics　in　China.To　find　out　strengthening　effects　of　this　material,by　shaking　table　tests　seismic　responses　of　a　ceramic　relic　in　a　1:1　scale　showcase　model　were　studied.2　boundary　conditions　of　the　relic　were　considered:free-　standing　and　strengthened　by　plastic　fastener.　By　white　noise　excitation　basic　frequency　of　the　showcase　was　obtained;　by　inputting　El-centro　earthquake　waves　of　different　intensities,seismic　responses　of　both　showcase　and　relic　were　studied,aseismic　results　of　plastic　fasteners　were　discussed.　By　simulation　method　finite　element　models　for　the　showcase　and　strengthened　relic　were　built,modal　as　well　as　time　history　analyses　were　carried　out　to　validate　the　effectivity　of　shaking　table　tests.Results　show　that　prominent　frequency　ingredients　of　the　showcase　are　far　greater　than　those　of　the　input　earthquake　waves,thus　the　showcase　is　not　damaged　seriously;　for　the　relic　after　it　is　strengthened　by　plastic　fasteners,its　peak　displacement　and　acceleration　response　values　decrease,which　still　embody　obviously　under　strong　earthquakes.Thus　by　plastic　fasteners　the　relic　can　be　effectively　strengthened.　Besides,simulation　results　are　well　in　accordance　with　those　of　shaking　table　tests,　which　proves　effectivity　of　the　test　method.　©　(2012)　Trans　Tech　Publications,　Switzerland.