There　is　a　growing　interest　in　the　development　of　precast　structures.　In　this　paper,　a　semi-precast　high-strength　recycled　aggregate　concrete　(RAC)　column　with　high-strength　reinforcement　was　studied,　which　was　consisted　of　cast-in-situ　core　concrete　surrounded　by　a　precast　external　shell.　Six　full-scale　columns　were　fabricated　and　tested　under　cyclic　lateral　load,　of　which　two　were　cast-in-situ　columns　and　four　were　semi-precast　columns.　The　penetration　of　shear　reinforcement　between　precast　external　shell　and　cast-in-situ　core　column,　core　column　diameter　and　axial　load　were　the　major　design　parameters.　The　test　results　showed　that　all　specimens　exhibited　a　good　deformation　capacity　with　an　ultimate　drift　ratio　greater　than　3%.　The　semi-precast　columns　had　comparable　seismic　performance　with　the　cast-in-situ　columns,　indicating　that　the　penetrating　shear　reinforcement　and　the　core　column　diameter　had　little　effect　on　the　seismic　performance.　The　core　column　diameter　could　be　selected　according　to　the　practical　engineering　requirements.　Increasing　the　axial　load　can　significantly　improve　the　lateral　load-carrying　capacity　of　the　specimens,　but　would　result　in　larger　residual　drift　ratio,　which　was　adverse　to　the　repairability　of　the　specimens.　The　flexural　deformation　and　the　deformation　resulting　from　slippage　of　longitudinal　reinforcement　in　the　concrete　foundation　accounted　for　50%-80%　and　10%-20%　of　the　lateral　displacement,　respectively,　which　should　not　be　ignored　in　the　deformation　calculation;　however,　the　shear　deformation　can　be　ignored.　The　optimized　models　applicable　to　calculate　the　F-Delta　curves　of　semi-precast　high-strength　RAC　columns　with　high-strength　reinforcement　were　proposed.　Parametric　analysis　based　on　the　optimized　models　was　carried　out　to　develop　N-M　curves　for　various　precast　external　shell　or　core　column　concrete　strength,　and　core　column　diameters.