Metal　rubber　is　an　elastic　porous　pure　metal　material　with　a　complex　and　disordered　internal　mesh　interpenetration　structure,　which　is　difficult　to　describe　accurately　by　general　methods,　which　limits　its　controllable　applications　in　high　temperature　environments.　To　this　end,　a　finite　element　model　of　metal　rubber　is　constructed　by　virtual　preparation　technology　that　integrates　the　material　properties,　wire　dimensions　and　process　parameters　of　metal　rubber.　On　this　basis,　the　dynamic　theoretical　formulas　for　the　heat　conduction　of　metal　wire　microelements　inside　metal　rubber　is　derived　and　related　finite　element　analysis　is　carried　out.　The　results　show　that　when　only　thermal　load　is　present,　the　metal　rubber　is　mainly　realized　by　continuous　metal　wires　for　heat　transfer　and　heat　exchange　through　interfacial　contact,　and　the　temperature　field　is　distributed　in　a　gradient　along　the　forming　direction.　In　addition,　due　to　the　expansion　of　the　material,　its　macroscopic　size　increases,　but　its　thermal　expansion　coefficient　is　smaller　than　that　of　the　solid　material　under　the　action　of　the　external　constraint　and　pore　containment　mechanism.　When　thermal-force　loading　is　also　present,　the　metal　rubber　shows　good　structural　stability　and　heat　resistance.　The　thermomechanical　properties　of　the　material　were　tested　by　high-temperature　quasi-static　compression　test,　it　is　verified　that　the　established　finite　element　model　can　effectively　reflect　and　predict　the　complex　thermomechanical　properties　of　the　metal-rubber　material,　which　provides　some　theoretical　guidance　for　the　application　of　the　material　in　high-temperature　environment.　©　2024　Chinese　Mechanical　Engineering　Society.　All　rights　reserved.