This　paper　presents　fabricated　concrete-filled　steel　tube　(CFST)　frame　sandwich-insulation　composite　wall　structures,　which　comprise　CFST　columns,　H-shaped　steel　beams　and　a　sandwich-insulation　composite　wall　with　or　without　openings.　The　seismic　behaviors　of　four　full-size　specimens　were　investigated　under　low-cyclic　loading,　including　the　failure　mode,　hysteretic　behavior,　strength,　ductility,　strength　and　stiffness　degradation,　energy　dissipation　capacity　and　strains.　The　experimental　results　indicated　that　the　proposed　fabricated　structures　had　good　seismic　behavior.　The　fabricated　composite　wall　had　a　significant　effect　on　the　bearing　capacity　of　the　structures　and　the　stiffness　and　energy　dissipation　capacity.　The　ductility　of　the　fabricated　CFST　frame　sandwich-insulation　composite　wall　structure　can　meet　the　requirements　of　the　elastic-plastic　inter-story　drift　limit　of　seismic　design　in　practical　engineering.　Although　the　tested　structures　had　the　same　opening　ratio,　the　structure　with　window　openings　had　better　seismic　performance　than　the　structure　with　door　openings.　Furthermore,　the　equivalent　compression　strut　model　was　used　to　calculate　the　bearing　capacity　of　the　proposed　structures.　The　errors　between　the　test　and　calculation　results　were　within　10%.　The　equivalent　compression　strut　model　can　provide　useful　design　guidance　for　fabricated　CFST　frame　sandwich-insulation　composite　wall　structures.　(C)　2019　Elsevier　Ltd.　All　rights　reserved.