A　series　of　uniform　ZnO　nanospheres-reduced　graphene　oxide　nanocomposites　(ZnO-RGO　NCs)　with　different　weight　addition　ratios　of　RGO　are　successfully　synthesized　via　a　facile　yet　efficient　method　by　intimately　coating　ZnO　nanospheres　(NSs)　with　RGO,　which　is　afforded　by　electrostatic　attraction　between　positively　charged　ZnO　NSs　and　negatively　charged　graphene　oxide　(GO)　in　an　aqueous　medium　at　room　temperature.　The　photocatalytic　test　of　degradation　of　Rhodamine　B　shows　that　the　optimal　ZnO-10%　RGO　NCs　exhibit　a　5-fold　enhancement　of　photoactivity　than　bare　ZnO　NSs,　which　is　ascribed　to　the　integrative　synergetic　effect　of　enhanced　adsorption　capacity,　the　decreased　recombination　of　the　electron-hole　pairs　and　the　enhanced　ultraviolet　light　absorption　intensity.　Significantly,　the　recycled　photoactivity　tests　show　that,　for　ZnO-RGO　NCs,　the　anti-photocorrosion　of　ZnO　NSs　is　improved　remarkably　which　is　attributed　to　the　effective　hybridization　of　ZnO　NSs　with　the　RGO　sheet　via　intimate　surface　coating.　Such　a　significant　photoactivity　enhancement　and　anti-photocorrosion　phenomenon　can　not　be　obtained　by　simply　integrating　RGO　with　ZnO　NSs　that　are　not　subject　to　surface　charge　modification,　which　thus　indicates　the　importance　of　intimate　surface　coating　of　ZnO　with　RGO　toward　the　efficiency　of　enhancement　of　photoactivity　and　particularly　the　anti-photocorrosion　of　ZnO.