Energy　dissipation　devices　are　frequently　utilized　in　structural　vibration　control.　This　study　introduces　a　novel　multi-stage　yield　and　failure　metal　sleeve　damper　whose　energy　dissipation　components　comprise　two　kinds　of　steel　strips　with　different　ratios　of　height　to　width.　The　proposed　damper　has　multiple　yield　points　which　existing　multi-stage　yield　dampers　have　and　extra　multiple　failure　stages,　and　its　energy　dissipation　components　are　external,　which　is　convenient　for　observation　and　replacement.　This　damper　can　dissipate　energy　under　various　earthquake　levels.　Moreover,　its　two　kinds　of　steel　strips　will　not　fail　simultaneously.　A　quasi-static　test　is　carried　out　to　investigate　its　energy　dissipation　performance,　failure　mode,　stiffness　degradation　behavior　and　the　effect　of　different　energy　dissipation　components　made　of　low　yield　point　steel.　This　is　followed　by　a　finite　element　study　to　further　verify　its　multi-stage　yield　function.　Finally,　calculation　formulas　of　its　significant　performance　parameters　such　as　yield　displacement　and　force　are　derived,　and　two　hysteretic　models　suitable　for　the　proposed　damper　are　suggested.　The　test　results　indicate　that　the　damper　has　excellent　energy　dissipation　performance　and　deformation　behavior.　If　different　steel　strips　are　made　of　low　yield　point　steel,　the　dampers　will　have　different　functions　and　advantages.　The　simulation　results　agree　with　the　test　results,　and　multi-stage　yield　function　of　the　proposed　damper　is　validated.　The　proposed　formulas　can　accurately　predict　damper　performance.