Flexible　microporous　metal　rubber　(FMP-MR)　is　widely　used　in　national　defense　applications,　yet　its　mechanical　behavior　under　high-speed　impact　conditions　remains　insufficiently　explored.　In　this　study,　dynamic　and　static　experiments　were　conducted　to　systematically　investigate　the　mechanical　response　of　metal-wrapped　microporous　materials　under　impact　loading　that　spanned　106　orders　of　magnitude.　By　combining　a　high-precision　numerical　model　with　a　spatial　contact　point　search　algorithm,　the　spatio–temporal　contact　characteristics　of　the　complex　network　structure　in　FMP-MR　were　systematically　analyzed.　Furthermore,　the　mapping　mechanism　from　turn　topology　and　mesoscopic　friction　behavior　to　macroscopic　mechanical　properties　was　comprehensively　explored.　The　results　showed　that　compared　with　quasi-static　loading,　FMP-MR　under　high-speed　impact　exhibited　higher　energy　absorption　efficiency　due　to　high-strain-rate　inertia　effect.　Therefore,　the　peak　stress　increased　by　141%,　and　the　maximum　energy　dissipation　increased　by　300%.　Consequently,　the　theory　of　dynamic　friction　locking　effect　was　innovatively　proposed.　The　theory　explains　that　the　close　synergistic　effect　of　sliding　friction　and　plastic　dissipation　promoted　by　the　stable　interturn-locked　embedded　structure　is　the　essential　reason　for　the　excellent　dynamic　mechanical　properties　of　FMP-MR　under　dynamic　loading　conditions.　Briefly,　based　on　the　in-depth　investigation　of　the　mechanical　response　and　energy　dissipation　mechanism　of　FMP-MR　under　impact　loads,　this　study　provides　a　solid　theoretical　basis　for　further　expanding　the　application　range　of　FMP-MR　and　optimizing　its　performance.　©　2025　China　Ordnance　Society