To　protect　cultural　relics,sliding　response　of　free-standing　museum　cultural　relic　under　earthquakes　was　studied　by　SIMULINK　technique.　By　hypothesis　that　shape　of　cultural　relic　was　rectangle,　under　earthquakes　its　sliding　conditions　were　analysed,　its　motion　equations　were　deduced,　its　response　curves　of　displacement,velocity　and　acceleration　were　obtained,and　parameters　such　as　friction　ratio　between　it　and　its　base　as　well　as　peak　earthquake　acceleration　values　were　discussed.　Results　show　that　slide　motion　of　cultural　relic　relates　mainly　to　friction　ratio　and　earthquake　strength;Its　sliding　response　is　more　obvious　with　the　increase　of　earthquake　strength　and　decrease　of　friction　ratio;On　the　other　hand,by　SIMULINK　technique　sliding　response　of　free-standing　cultural　relic　under　earthquakes　can　be　effectively　simulated　which　proves　the　technique　useful.