In　the　present　study,　we　present　new　experimental　and　calculated　results　of　Co　nanowires　synthesized　by　the　solvothermal　method.　The　coercivity　of　8.7　kOe　and　the　energy　product　of　31.4　MGOe　were　obtained　for　wires　of　average　diameters　of　20　nm　and　average　lengths　of　200　nm.　The　experimental　and　numerical　results　of　nanowires　were　discussed.　Micromagnetic　simulations　were　conducted　to　study　the　dependence　of　the　magnetic　properties　on　the　nanowire　aspect　ratios,　diameters,　and　various　magneto-crystalline　easy　axis　deviation　angles　from　the　long　axis　of　Co　nanowires.　The　calculation　with　a　magneto-crystalline　easy　axis　deviations　from　long　axis　show　a　better　accordance　with　experimental　results.　The　state　graphs　for　reversal　modes　versus　the　magnetocrystalline　easy　axis　deviation　angles　in　Co　nanowires　were　presented.