The　dispersion　of　nanographite　(CNPs)　in　aqueous　solution　was　first　modified　by　sodium　dodecyl　sulfate　(SDS)　in　order　to　prepare　uniformly　distributed　CNPs　on　the　surface　of　functioned　graphene　nanoribbons　(EGNRs).　Afterwards,　the　EGNRs75%-CNPs/EVA　composite　films　were　prepared　by　solution　coating　method　on　a　coating　machine.　The　morphology　and　properties　of　EGNRs75%-CNPs/EVA　composite　films　were　investigated　by　FTIR,　XRD,　XPS,　FE-SEM,　TEM,　oxygen　transmission　rate　and　high　resistance　meter.　The　results　show　that　the　conductive　network　of　EGNRs75%-CNPs　can　be　observed　after　being　loaded　with　CNPs,　which　is　beneficial　to　the　dispersion　of　EGNRs75%-CNPs　in　EVA　matrix.　When　the　mass　fraction　of　EGNRs75%-CNPs　is　1%,　compared　with　that　of　the　pure　EVA,　the　oxygen　transmission　rate　of　EGNRs75%-CNPs/EVA　composite　films　is　reduced　by　67.6%,　thus　the　barrier　property　has　improved　deeply.　EGNRs75%-CNPs/EVA　composite　films＇　conductivity　has　been　improved　by　8　orders　of　magnitude　as　EGNRs75%-CNPs　mass　fraction　is　0.8%　because　of　the　formation　of　3D　conductive　network,　which　exhibit　the　excellent　room　temperature　conductivity.　©　2017,　Chinese　Society　for　Composite　Materials.　All　right　reserved.