The　seismic　performance　of　the　innovative　steel-reinforced　reactive　powder　concrete　(SRRPC)　composite　columns　was　evaluated　via　the　cyclic　experiments　considering　the　steel　shape　ratio,　axial　compression　ratio　and　the　stirrup　ratio.　The　SRRPC　columns　generally　exhibited　appreciable　seismic　behavior,　great　crack-resistance　and　excellent　anti-spalling　property.　It　was　found　that　increasing　the　steel　shape　ratio　from　4.20%　to　5.35%　can　significantly　enhance　the　ductility　and　the　energy　dissipation　capacity.　As　the　axial　compression　ratio　increased　from　0.1　to　0.3,　the　peak　lateral　load　increased　but　the　ductility　significantly　decreased.　Increasing　the　stirrup　ratio　from　1.57%　to　2.52%　was　not　helpful　for　seismic　performance　in　the　pre-peak　zone　but　was　beneficial　to　the　strength　and　ductility　in　the　post-peak　zone.　Moreover,　the　average　strength　loss　of　the　SRRPC　columns　with　low　axial　compression　ratio　at　the　4.5%　drift　ratio　was　less　than　12.5%,　satisfying　the　modern　seismic　drift　criteria.　Two　coefficients,　&　beta;tu　and　k,　for　predicting　the　equivalent　tensile　strength　were　identified　and　compared　to　the　suggested　values　from　the　specifications　JGJ/T　465-2019　and　T/CCPA　35-2022,　respectively.　An　analytical　model　was　successfully　developed　to　predict　the　lateral　load-bearing　capacity.　Good　agreements　were　found　between　the　experimental　and　analytical　results.