To　improve　mechanical　and　thermal　properties　of　jute　fibers　(JFs)　reinforced　polypropylene　(PP)　composites,　a　surface　treatment　method　by　grafting　graphene　oxide　nanoplatelets　(GONPs)　onto　JFs　was　developed.　The　GONPs　effectively　enhanced　the　interfacial　adhesion　between　JFs　and　PP　matrix　via　improving　mechanical　interlocking.　The　results　show　that　PP/JFs-KH570-GONPs　composites　had　the　significant　improvement　of　16.2　%　and　12.4　%　in　tensile　and　flexural　strength,　respectively.　And　the　thermal　property　of　PP/JFs-Silane-GONPs　composites　was　also　improved　after　treatment.　These　high　performance　composites　have　the　potential　to　be　applied　in　many　fields,　such　as　the　automotive　industry,　household　products　and　so　on.