The nanoSiC powders with different thickness were coated on the surface of the plasmacoated FeWC cermet coating,then the coating with different nanoSiC content was prepared by using laser remelting process.The metallographic organization,microstructure and phase composition of the coating were studied by means of metallographic microscope,scanning electron microscopy (SEM) and Xray diffraction (XRD).The microhardness of the surface and cross section of the coating was measured by microhardness tester.The wear resistance was studied on the MMG10 friction and wear testing machine.The results show that with the increase of nanoSiC content,the degree of grain refinement of the coating is improved,the porosity is decreased,and the hard phases such as CrSi2 and Cr7C2 are increased in the coating,and the new phase (Fe2Si,CrSi) is also increased.The microhardness and wear resistance of the coating are also increased with the increase of nanoSiC content.