Based　on　the　experimental　study　of　4　self-compacting　concrete　frame　joints　strengthened,　Using　the　finite　element　software　ABAQUS　to　establish　the　finite　element　model　of　self-compacting　concrete　frame　joints　strengthened,　Considering　the　material　nonlinear　and　crushing　of　concrete　material,　simulation　results　are　consistent　with　the　experiment　results　well.　The　effect　of　limit　capacity　of　the　joints　was　studied　by　analyzing　the　initial　force,　The　results　indicated　that　initial　force　has　some　influence　on　limit　capacity　of　the　joints,　The　consolidation　design　should　be　considered.