In　this　paper,　an　innovative　retrofitting　method　using　steel-member　and　high-performance　polymer　mortar　was　purposed　for　masonry　walls.　In　order　to　study　the　effectiveness　of　the　proposed　retrofitting　method,　three　specimens　of　concrete　tie-column　confined　masonry　wall　were　designed　and　manufactured.　The　quasi-static　tests　were　conducted　in　two　stages:　before　and　after　retrofitting.　Damage　progression,　hysteretic　behavior,　stiffness　degradation,　and　energy　dissipation　were　compared　and　analyzed.　The　results　show　that　after　retrofitting　with　the　proposed　method,　bearing　capacity　of　damaged　walls　is　increased　by　17.66%–42.37%.　The　initial　stiffness　can　be　restored　to　85%　of　the　original　wall.　The　energy　dissipation　capacity　is　increased　by　270.20%–330.55%.　The　proposed　method　can　effectively　improve　the　seismic　behavior　of　damaged　masonry　walls.　Finally,　evaluation　methods　of　bearing　capacity　for　masonry　walls　before　and　after　retrofitting　were　given,　the　calculated　results　were　in　reasonably　good　agreement　with　test　results.　©　2023　Elsevier　Ltd