As　a　novel　lightweight　metallic　material　with　excellent　heat　and　corrosion　resistance,　elastic　disordered　microporous　metal　rubber　(EDMMR)　functions　as　an　effective　damping　and　support　element　in　high-temperature　environments　where　traditional　polymer　rubber　fails.　In　this　paper,　a　multi-scale　finite　element　model　for　EDMMR　is　constructed　using　virtual　manufacturing　technology　(VMT).　Thermo-mechanical　coupling　analysis　reveals　a　distinct　inward　expansion　and　dissipation　phenomenon　in　EDMMR　under　high-temperature　conditions,　distinguishing　it　from　porous　materials.　This　phenomenon　has　the　potential　to　impact　the　overall　dimensions　of　EDMMR　through　transmission　and　accumulation　processes.　The　experimental　results　demonstrate　a　random　distribution　of　internal　micro　springs　in　EDMMR,　considering　the　contact　composition　of　spring　microelements　and　the　pore　structure.　By　incorporating　material　elasticity,　a　predictive　method　for　the　thermal　expansion　coefficient　of　EDMMR　based　on　the　Schapery　model　is　proposed.　Additionally,　standardized　processes　are　employed　to　manufacture　multiple　sets　of　cylindrical　EDMMR　samples　with　similar　dimensions　but　varying　porosities.　Thermal　expansion　tests　are　conducted　on　these　samples,　and　the　accuracy　of　the　predicted　thermal　expansion　coefficient　is　quantitatively　validated　through　residual　analysis.　This　research　indicates　that　EDMMR　maintains　good　structural　stability　in　high-temperature　environments.　The　thermal　expansion　rate　of　the　material　exhibits　an　opposite　trend　to　the　variation　of　elastic　modulus　with　temperature,　as　the　porosity　rate　changes.　©　The　Author(s)　2025.