To　investigate　the　seismic　isolation　effect　of　the　steel　damping　sliding　bearing　on　the　continuous　girder　bridge,　a　continuous　girder　bridge　with　the　spans　of　25　m+25　m　was　taken　as　the　prototype　and　the　model　bridge　on　the　scale　of　15　was　designed　and　fabricated.　The　seismic　isolation　performance　of　the　bearing　was　studied　through　the　shake　table　tests　and　the　influences　of　the　different　seismic　wave　types,　seismic　input　directions　and　seismic　intensity　on　the　isolation　effect　of　the　bearing　were　analyzed.　The　results　indicate　that　when　the　seismic　wave　frequencies　approximate　the　natural　vibration　frequencies　of　the　model　bridge,　the　isolation　effect　of　the　bearing　is　relatively　poor.　When　the　seismic　waves　are　input　bidirectionally,　the　acceleration　and　displacement　responses　of　the　bridge　are　greater　than　those　when　the　seismic　waves　are　input　unidirectionally.　When　the　seismic　waves　are　input　transversely,　the　seismic　responses　of　the　bridge　are　greater　than　those　when　the　seismic　waves　are　input　longitudinally.　The　greater　the　input　ground　motion　intensity　is,　the　more　significant　the　isolation　effect　of　the　bearing　will　be.　Under　the　seismic　wave　with　the　peak　acceleration　of　3.82　m/s2,　the　micro　cracks　appear　in　the　middle　pier　of　the　bridge,　but　the　cracks　do　not　influence　the　normal　service　of　the　bridge　and　the　isolation　effect　of　the　bearing　remains　good.　©　2017,　Journal　Press,　China　Railway　Bridge　Science　Research　Institute,　Ltd.　All　right　reserved.