To　study　the　damage　of　a　recycled　aggregate　concrete　filled-steel　tubular　(RACFST)　column　under　impact　load,　16　RACFST　columns　were　subjected　to　drop　hammer　impact　tests.　Based　on　the　test,　a　finite　element　model　of　RACFST　was　established　to　analyze　the　influence　of　different　impact　velocity,　impact　mass　and　section　steel　content　on　the　damage　degree　of　the　RACFST　columns.　By　controlling　impact　mass　and　impact　velocity,　damage　assessment　grades　were　divided　based　on　damage　factor　d^　and　elastic-plastic　angle　0,　and　the　damage　assessment　curves　of　the　RACFST　columns　were　fit　by　simulation.　The　results　show　that　the　difference　between　FEM　results　and　experimental　results　is　less　than　10%,　and　the　former　can　reflect　the　change　of　the　latter.　The　peak　time　of　mid-span　deflection　in　the　impact　process　lagged　far　behind　the　peak　time　of　impact　force,　and　impulse　is　1.　23　times　of　momentum.　With　the　increase　of　impact　velocity,　the　mid-span　deflection　increases　in　a　parabolic　trend.　The　increase　of　impact　mass　has　little　effect　on　the　peak　of　impact　force　but　has　great　effect　on　the　mid-span　deflection.　With　the　increase　of　steel　content　in　the　section,　the　energy　consumption　of　the　member　almost　stabilizes　around　90%　.　The　overall　damage　and　local　damage　of　the　RACFST　columns　could　be　quickly　judged　from　the　damage　curve.　©　2024　Chinese　Vibration　Engineering　Society.　All　rights　reserved.