An　innovative　T　-stub　connection　with　inserted　plates　was　developed,　which　could　not　only　provide　good　seismic　performance　but　could　also　be　easily　repaired　after　a　heavy　earthquake.　The　main　feature　of　this　connection　is　that　plastic　deformation　is　limited　to　the　T　-stub　at　the　bottom　flange.　To　increase　the　energy　dissipation　of　T　-stub,　two　plates　are　inserted　into　between　the　T　-stub　at　beam　bottom　flange　and　the　column　flange.　In　this　paper,　five　T　-stub　connections　were　design　to　carry　different　bending　moments.　The　seismic　performance　of　the　connections　designed　was　studied　by　using　a　three　dimension　finite　element　analysis,　which　incorporated　the　effects　of　material　and　geometric　nonlinearities　and　interaction　of　the　bolted　plates.　The　analysis　results　indicate　that　the　larger　the　design　bending　moment,　the　more　the　energy　consumption　of　the　specimen　is;　the　less　the　design　bending　moment,　the　less　the　strain　of　beam　is.　On　the　whole,　when　the　design　bending　moment　is　determined　as　0.6　times　the　plastic　moment　of　beam,　the　specimen　has　a　good　seismic　behavior,　and　the　beam　does　not　yield　obviously.　©　2012　American　Scientific　Publishers.