A　shear　wall　with　CFST　columns　and　embedded　steel　plate　deep　beams　was　proposed　in　this　study.　Two-stage　experiments　were　carried　out　to　investigate　its　seismic　behavior　and　the　reinforcement　behavior　after　damage.　Low　cyclic　loading　test　stage-I　was　applied　until　the　displacement　drift　arrived　at　1/50.　The　specimen　was　damaged　obviously.　After　that,　thinner　steel　plates　were　welded　on　both　sides　of　the　wall　so　as　to　strengthen　the　damaged　specimen.　Low　cyclic　loading　test　stage-II　was　then　applied　until　the　specimen　failed.　The　load-bearing　capacity,　stiffness　and　its　degradation　process,　ductility,　energy　dissipation　and　failure　characteristics　were　discussed.　Results　show　that,　because　the　cracks　on　concrete　strips　are　well　controlled　by　the　CFST　boundary　columns　and　the　steel　reinforced　middle　column,　the　ductility　of　the　wall　is　improved;　By　setting　the　concealed　steel　plate　deep　beams,　the　load-bearing　capacity　and　the　later　stiffness　are　improved　greatly;　the　boundary　areas　between　concrete　strips　and　CFST　columns　as　well　as　steel　reinforced　middle　column　formed　the　vertical　energy　dissipation　strips　and　consume　the　energy　during　the　back　and　forth　movement;　after　damage　and　strengthening,　the　new　wall　still　has　enough　seismic　capacity　and　good　energy　dissipation　capacity,　and　it　is　easy　to　be　repaired　after　earthquake.