In　the　work,　the　spin-dependent　electrical　conductivity　and　the　current　spin　polarization　are　self-consistently　derived　applying　the　spin　drift-diffusion　equation　on　the　ferromagnetic　(FM)/organic　(OSE)　structure.　The　calculations　show　that　the　spin　dependence　of　the　electrical　conductivity　is　induced　by　the　spin　injection　and　closely　related　to　the　current　spin　polarization.　Spin　injection　make　the　spin　density　of　the　polarons　different　at　the　different　position　in　the　organic　semiconductor.　So　the　electrical　conductivity　induced　by　up-spin　polarons　(down-spin　polarons)　is　different,　too.　The　spin-dependent　electrical　conductivity　is　position-dependent　in　the　organic　semiconductor.　In　addition,　it　is　found　that　in　the　low-voltage　regime　(eV«kBT),　the　electric-field　can　enhance　the　current　spin　polarization　in　the　FM/OSE　system.