Graphene　oxide　nanosheets　(GONSs)/cyanate　ester　(CE)　resin　composites　were　prepared　via　a　solution　intercalation　method.　The　structures　of　the　GONSs　and　the　composites　were　studied　using　Fourier　transform　infrared　spectroscopy　(FT-IR),　X-ray　diffraction　(XRD),　transmission　electron　microscopy　(TEM)　and　scanning　electron　microscopy　(SEM).　The　mechanical　and　tribological　properties　of　the　composites　were　investigated.　In　addition,　the　thermal　behavior　of　the　composites　was　characterized　by　thermogravimetric　analysis　(TGA).　Results　show　that　the　GONSs/CE　resin　composites　were　successfully　prepared.　The　addition　of　GONSs　is　beneficial　to　improve　the　mechanical　and　tribological　properties　of　the　composites.　Moreover,　the　composites　exhibit　better　thermal　stability　in　comparison　with　the　CE　resin　matrix.　(C)　2012　Elsevier　Ltd.　All　rights　reserved.