To　enhance　the　compressive　performance　of　steel　plate　shear　walls,　this　paper　proposed　a　new　type　internally　stiffened　double　steel　plate　shear　wall　(ISD-SPSW),　incorporating　two　outer　steel　plates,　a　number　of　stiffening　ribs　and　edge　members　on　both　sides　to　form　a　closed　cross-section,　which　significantly　improves　the　compressive　and　lateral　stiffness　of　the　double　steel　plate　shear　wall.　To　investigate　the　deformation　and　failure　modes　of　ISDSPSW　under　vertical　axial　compressive　loads,　seven　specimens　were　designed　and　fabricated　in　this　paper,　and　axial　compression　experiments　were　carried　out.　The　effects　of　the　loading　regime,　number　of　web　stiffening　ribs,　thickness　of　outer　steel　plates,　width　of　edge　members,　and　height　of　the　wall　on　the　compressive　performance　of　shear　walls　were　examined.　The　load-equivalent　vertical　strain　curves,　strain　curves,　displacement　ductility　coefficients,　and　other　axial-pressure　performance　indices　of　the　ISD-SPSW　were　obtained.　The　results　indicated　that　the　failure　modes　of　ISD-SPSW　under　axial　compressive　loads　primarily　involve　strength　failure　and　overall　bending　instability.　Increasing　the　number　of　stiffening　ribs　or　the　thickness　of　outer　steel　plates　significantly　enhances　the　compressive　load-bearing　capacity　and　ductility　of　the　ISD-SPSW.　When　the　specimen　has　a　larger　height　to　thickness　ratio　of　the　specimen,　it　is　prone　to　overall　bending　instability　failure,　leading　to　lower　ductility　and　load-bearing　capacity.