The　effective　recovery　of　metallic　iron　and　vanadium　from　steel　slag　and　ensuring　the　gelling　properties　of　the　residual　slag　after　metal　separation　are　crucial　for　their　high-value-added　utilisation.　In　this　study,　we　established　suitable　process　conditions　for　high-temperature　reduction　and　reconstruction　using　the　Si/Al　ratio　as　an　adjustment　parameter　and　employing　rice　husk　ash,　SiO2,　and　Al2O3　as　the　adjustment　materials.　The　influence　of　the　reconstructed　steel　slag　composition　and　structure　on　the　iron　reduction　rate　and　vanadium　migration　was　investigated.　Additionally,　we　tested　the　compressive　strength　of　the　cement　slurry　at　different　times　to　compare　the　gelling　performance　of　the　tailings　after　iron　reduction　from　the　Vanadium-containing　steel　slag.The　results　showed　that　the　high-temperature　reduction　method　effectively　reduced　metallic　iron　and　vanadium　in　the　steel　slag.　The　iron　reduction　rate　reached　as　high　as　98.53%,　and　inert　components　such　as　the　CaO-FeO-MgO-MnO　solid　solution　(RO)　phase,　C2F,　and　Fe3O4　in　the　original　steel　slag　could　be　effectively　reconstructed　to　form　a　glass-phase　structure　with　certain　gelling　properties.　Moreover,　the　content　of　the　glass　phase　remained　stable　above　90%.　For　the　same　temperature,　the　liquid　viscosity　of　the　reconstructed　steel　slag　increased,　and　after　cooling,　the　glass-phase　content　decreased　with　decreasing　Si/Al　ratio.　This　resulted　in　an　increase　in　the　amount　of　crystalline-phase　minerals　such　as　Ca3Mg(SiO4)2,　Ca2Al2SiO7,　and　C2S.　The　iron　reduction　rate　generally　exhibited　a　downward　trend,　and　the　change　in　the　vanadium　content　was　consistent　with　the　iron　reduction　rate.　Following　the　reduction　and　reconstruction　of　iron　separation,　the　gelling　properties　of　the　vanadium-containing　steel　slag　improved,　with　a　28-day　strength　that　was　64.26%　higher　than　that　of　the　original　steel　slag.　©　2023　Elsevier　Ltd