This　study　proposed　a　novel　rocking　component,　namely　self-centring　hybrid　rocking　columns　(SCR).　Cyclic　loading　tests　are　conducted　on　a　substructure　consisting　of　the　SCR　and　a　frame　beam-to-SCR　connection　to　investigate　its　hysteretic　performance.　A　numerical　model　of　the　SCR　substructure　is　built　and　validated　against　the　test　results.　Finally,　the　seismic　performance　of　steel　frames　equipped　with　the　SCR　is　demonstrated　through　the　nonlinear　time　history　analysis.　It　shows　that　the　proposed　self-centring　hybrid　rocking　column　has　acceptable　lateral　resisting,　energy　dissipation　and　self-centring　capability.　The　simplified　numerical　model　of　the　SCR　can　reasonably　well　capture　the　hysteretic　behaviour　of　the　SCR　substructure　no　matter　with　or　without　the　steel　damper　and　tension　braces.　The　system-level　analysis　of　steel　frames　with　the　SCRs　verifies　the　effectiveness　of　the　proposed　SCR　in　mitigating　maximum　and　residual　drift　responses　of　steel　frames　under　earthquakes.　After　equipping　the　SCRs,　the　inter-storey　drift　concentration　is　also　mitigated　under　earthquakes.