This　work　aims　to　develop　an　enhanced　constitutive　model　to　efficiently　capture　the　nonlinear　mechanical　properties　of　the　elastic-porous　metal　rubber　such　as　hysteresis　characteristics　and　variable　stiffness　behavior.　As　a　key　fabrication　variable,　the　normal　distribution　of　the　three-dimensional　interlocked　angle　is　introduced　to　describe　the　orientation　arrangement　of　the　metal　wires　and　to　develop　an　equivalent　stiffness　model　of　the　elastic-porous　metal　rubber.　Integrating　with　the　evolution　of　the　typical　hysteresis　loops,　different　function-fitting　methods　are　used　to　describe　the　mechanical　behavior　under　loading　and　unloading　paths.　In　particular,　the　effect　of　displacement　amplitude　on　the　mechanical　properties　in　the　unloading　process　is　addressed.　From　the　results,　it　is　observed　that　the　hysteresis　loop　curves　predicted　by　the　enhanced　constitutive　model　show　a　great　agreement　with　the　experimental　results.　The　enhanced　constitutive　model　has　better　prediction　accuracy　as　compared　to　the　other　constitutive　models　(such　as　the　micro-spring　model　and　the　porous　material　model).　In　addition,　the　anisotropic　behavior　and　the　dynamic　property　associated　with　stiffness　and　energy　dissipation　of　elastic-porous　metal　rubber　are　analyzed　and　discussed.