The　spin-dependent　electronical　conductivity　of　polarons　is　studied　in　the　spin　polarized　organic　semiconductor　It　is　found　that　the　spin　dependence　of　the　electronical　conductivity　is　induced　by　the　spin　polarization　of　the　organic　semiconductor,　for　the　spin　polarization　makes　the　up-spin　and　the　down-spin　polarons　have　different　density,　which　generates　the　spin-dependent　electronocal　conductivity.　The　spin-dependent　electrical　conductivity　can　be　directly　affected　by　the　match　level　of　conductivities　sigma(0)/sigma(f)　at　the　interface　of　the　FM/OSE.　Moreover,　the　current　spin　polarization　in　the　organic　semiconductor　can　be　strengthened　by　the　electric-field　in　the　low-electric-field　region.