In　this　paper,　the　composite　coating　of　Ni/nano-SiC　was　prepared　by　brush-plating　technology.　The　microhardness　of　the　composite　coating　were　investigated,　and　the　relationship　between　the　main　parameters　and　the　microhardness　were　also　discussed.　The　EPMA　was　used　to　analyze　the　composite　coatings＇　microstructure,　surface　morphology　and　elements　distribution.　On　the　basis　of　experimental　results,　the　mechanism　of　the　codeposition　of　nano-SiC　and　Ni　was　discussed.