The　stack-like　functionalized　graphene　nanoribbons　(SF-GNRs)/thermoplastic　polyurethane　(TPU)　composite　films　were　obtained　by　solution　coating　film　method　on　a　coating　machine.　FTIR,　XRD,　XPS,　TEM　and　FE-SEM　were　used　to　characterize　the　structure　of　SF-GNRs.　Meanwhile,　by　means　of　oxygen　transmission　rate,　volume　resistivity　test,　and　the　observation　of　surface　morphology,　we　studied　the　effect　of　SF-GNRs　with　different　mass　fractions　on　the　barrier　and　antistatic　properties　of　TPU　composite　films.　The　results　show　that　the　SF-GNRs　with　high　surface　area　are　evenly　dispersed　within　TPU　matrix.　As　a　result,　when　the　mass　fraction　of　SF-GNRs　is　1.0%,　the　oxygen　transmission　rate　of　SF-GNRs/TPU　composite　films　reduces　by　67.76%,　compared　with　that　of　the　neat　TPU　film.　Barrier　property　has　obvious　improvement.　In　addition,　as　SF-GNRs　mass　fraction　reaches　to　1.0%-1.5%,　SF-GNRs/TPU　composite　films　appear　electrical　percolation　behavior　which　exhibit　the　excellent　room　temperature　conductivity.　©　2016,　BUAA　Culture　Media　Group　Ltd.　All　right　reserved.