Earthquake-resilient　structures　have　become　a　hot　topic　in　seismic　research.　Based　on　the　concept　of　damage　control,　this　paper　presents　a　new　type　of　earthquake-resilient　prefabricated　beam-column　cross　joint　(ERPCJ).　After　a　strong　earthquake,　the　function　of　the　joint　can　be　quickly　restored　because　damage　is　concentrated　mainly　on　replaceable　connecting　parts.　First,　the　construction　and　advantages　of　the　ERPCJ　are　explained,　and　its　seismic　design　requirements　are　established.　Then,　the　theory　behind　the　design　of　the　ERPCJ　is　proposed　and　verified　by　numerical　simulation　using　eight　ERPCJ　models.　The　hysteretic　behaviour　of　the　ERPCJ　was　investigated　using　the　finite　element　(FE)　method　considering　the　effects　of　the　weakening　profile　in　the　flange　cover　plate,　the　thickness　and　strength　of　the　flange　cover　plate,　the　distance　between　the　middle　bolts,　the　gap　between　the　beams,　and　the　bolt　hole　shape.　Finally,　cyclic　loading　and　repairing　tests　were　conducted　on　a　basic　specimen,　and　the　rationality　of　the　design　theory　was　verified.　The　seismic　performance　and　the　post-earthquake　resilience　performance　of　the　joint　were　investigated.　Numerical　analysis　and　experiments　showed　that　the　proposed　design　theory　could　accurately　predict　the　yield　load　of　the　ERPCJ.　A　reasonably　well-designed　ERPCJ　should　have　good　bearing　capacity,　collapse　resistance　capacity,　seismic　performance,　and　post-earthquake　resilience　performance.　The　thickness　and　strength　of　the　flange　cover　plate,　the　distance　between　the　middle　bolts,　and　the　gap　between　the　beams　have　a　large　effect　on　the　seismic　behaviour　of　the　joint,　and　so　should　be　properly　designed.