Grouted　sleeves　are　widely　adopted　in　accelerated　bridge　construction　(ABC),　and　connecting　column　segments　by　splice　joints.　As　a　part　of　column　structure　in　prefabricated　bridges,　mechanical　behavior　of　splice　joint　under　seismic　load　is　paid　less　attention.　4　scaled　precast　columns　connected　by　grouted　sleeves　(PCCGS)　with　low　aspect　ratio　under　cyclic　lateral　loading　were　performed,　giving　the　damage　mode,　force　and　deformation　ability　of　splice　joints.　The　splice　joint　of　specimen　was　then　sliced　to　investigate　the　inner　failure　at　the　joint　surface　and　obtain　bond-slip　of　contact　between　steel　and　grout.　Finite　element　model　(FEM)　with　refined　mesh　was　established　to　reveal　the　damage　mechanism　of　splice　joint　and　lateral　force　and　displacement　of　column　top.　A　computational　model　was　proposed　to　predict　the　force-displacement　of　splice　joint,　innovatively　considering　bond　and　slip　between　rebar　and　sleeve.　The　FE　model　and　computing　model　are　helpful　to　conduct　seismic　designing　of　PCCGS.