In　order　to　study　the　impact　resistance　of　recycled　concrete　columns　of　steel　tubular　with　nickel　iron　slag,　11　specimens　of　recycled　concrete　columns　of　round　steel　tubes　are　designed　with　coarse　aggregate　substitution　rate,　axial　compression　ratio,　weight　of　drop　weight　and　impact　energy　as　the　changing　parameters.　The　influence　of　axial　compression　ratio,　coarse　aggregate　substitution　rate,　impact　energy　and　drop　weight　steel　tube　on　the　lateral　impact　performance　of　recycled　concrete　column　is　studied.　The　results　show　that　the　impact　resistance　of　recycled　concrete　filled　steel　tube　column　is　good,　and　the　energy　absorption　rate　is　basically　constant　at　about　67%.　Compared　with　the　replacement　rate　of　0%,　the　mid-span　deflection　of　the　specimen　decreased　by　8.9%　on　average　when　the　replacement　rate　of　recycled　coarse　aggregate　is　30%.　The　replacement　rate　of　recycled　coarse　aggregate　is　70%,　and　the　mid-span　deflection　of　the　specimen　decreases　by　11.4%　on　average.　With　the　increase　of　impact　energy,　the　mid-span　residual　displacement　increases　significantly.　When　the　axial　compression　ratio　is　less　than　0~0.4,　the　axial　force　can　improve　the　impact　resistance　of　recycled　concrete　filled　steel　tube.　The　drop　weight　increases　from　330　kg　to　430　kg,　and　the　impact　duration　increases　by　16%.　As　the　collar　coefficient　increases,　the　mid-span　deflection　decreases.　©　2024　Nanjing　University　of　Aeronautics　an　Astronautics.　All　rights　reserved.