Chopped　aramid　fiber-reinforced　rubber　composite　(AFRC)　has　been　widely　used　in　the　construction　industry　owing　to　its　excellent　characteristics;　however,　the　study　of　the　mechanisms　that　give　rise　to　its　properties　remains　a　challenge　because　of　the　hyperelastic　properties　of　the　rubber　matrix,　coupled　with　the　large　aspect　ratio　and　anisotropy　of　the　aramid　fibers.　This　study　aimed　to　investigate　the　hyperelastic　mechanical　properties　of　AFRC　by　combining　experimental　methods　and　numerical　prediction.　In　this　research,　a　finite　element　model　was　thoroughly　verified　using　strain　energy　analysis.　The　hyperelastic　behavior　of　AFRC　was　studied　using　a　three-dimensional　numerical　method　based　on　the　proposed　representative　volume　elements,　and　a　good　agreement　between　the　experimental　and　numerical　results　was　demonstrated.　In　addition,　the　stretched　ratio　was　studied　which　would　be　considered　as　a　reference　for　the　study　of　internal　mechanism　of　AFRCs.