A　cored　wire　containing　the　boron　carbide　ceramic　powder　and　other　alloying　elements　powder　was　fabricated　with　304L　stainless　steel　sheath　and　the　metal　ceramic　composite　coating　was　deposited　by　arc　spraying.　The　feasibility　of　boron　carbide　in　the　application　of　arc　spraying　was　studied.　The　microstructure,　phase　compositions　and　worn　surface　morphologies　of　the　coatings　were　analyzed　by　means　of　scanning　electron　microscopy　and　X-ray　diffraction.　High　temperature　abrasive　wear　performance　and　erosion　performance　were　evaluated　by　high-temperature　abrasive　wear　tester　designed　by　authors　and　high　temperature　erosion　devices,　respectively.　The　results　show　that　the　cored　wires　have　good　process　ability　for　arc　spraying.　The　composite　coatings　contains　Fe3B,　CrB,　FexNi23-xB6,　Fe23(C,　B)6,　(Cr,　Fe)7C3　and　Fe3C　hard　phases　due　to　the　in-situ　synthesis　of　B4C　ceramic　particle　with　other　alloying　elements　powder,　which　result　in　a　significant　increase　in　the　hardness,　wear-resistantance　and　erosion-resistantance　of　the　coating.