Sixty-three　circular　concrete　filled　winding　glass　fibre　reinforced　plastic　(GFRP)　tubular　columns　after　lateral　impact　damage　were　tested,　which　were　used　to　investigate　the　behaviour　of　circular　concrete　filled　winding　GFRP　tubular　(CFWGT)　columns　under　compressive　loading　in　this　paper.　The　influence　of　the　thickness　of　the　GFRP　tube,　the　height　of　the　lateral　impact　and　the　location　of　the　lateral　impact　on　the　mechanical　properties　of　the　specimens　were　analyzed.　Test　results　show　that　the　lateral　impact　had　a　negative　impact　on　the　vertical　bearing　capacity　of　the　circular　CFWGT　column.　As　the　height　of　the　lateral　impact　increased,　the　vertical　bear-ing　capacity　and　initial　stiffness　of　the　specimens　decreased.　When　the　position　of　the　lateral　impact　is　closer　to　the　end　of　the　specimen,　the　lower　the　vertical　bearing　capacity　and　initial　stiffness　of　the　specimen　are.　The　negative　effects　of　lateral　impact　on　the　vertical　bearing　capacity　and　initial　stiffness　of　CFWGT　columns　can　be　reduced　by　increasing　the　GFRP　tube　thickness.　According　to　the　test　results,　the　calculation　formula,　which　was　based　on　a　mechanics　calculation　model,　was　presented　to　calculate　the　vertical　capacity　of　circular　CFWGT　columns　after　lateral　impact.