Carbon　nanotube　reinforced　natural　rubber　composites　(CNT/NRs)　have　been　increasingly　used　in　industry.　However,　due　to　the　large　aspect　ratio　and　high　curling　of　CNTs,　the　traditional　theoretical　models　that　have　been　used　for　inclusion-reinforced　composites　cannot　be　applied　to　CNT/NRs　directly.　Therefore,　a　longer　time　is　needed　to　predict　the　elastic　properties　of　CNT/NRs　in　experiments.　In　this　work,　the　classical　macroscopic　model　and　mesoscopic　method　were　used　to　predict　the　elastic　performance　of　CNT/NRs　prepared　by　the　latex　blending　method.　Three　types　of　phenomenological　models　were　employed:　Mooney-Rivlin,　Ogden,　and　Yeoh.　A　comparison　with　the　experimental　results　shows　that　the　Ogden　model　describes　the　constitutive　behavior　of　CNT/NRs　more　accurately.　In　addition,　at　the　mesoscale,　the　Halpin-Tsai　equation,　Mori-Tanaka　model,　and　finite　element　method　were　employed　to　predict　the　elastic　modulus　based　on　the　persistent　length　theory.　The　stress-strain　curves　under　large　deformations　were　compared　with　those　of　the　experimental　results.　Therefore,　the　applicability　of　the　three　mesoscale　models　were　verified　for　the　CNT/NRs　studied　in　this　work.