Two　Fe-based　alloy　cored　wires　(FeCrAl,　FeCrB)　were　designed　to　prepare　coatings　by　wire-arc　spraying　process.　The　microstructure,　thermal　conductivity　and　wear　behavior　of　the　Fe-based　coatings　were　investigated　by　means　of　X-ray　diffraction,　optical　microscopy,　scanning　electron　microscopy,　transmission　electron　microscopy,　thermal　conductivity　test　and　wear　test,　and　comparison　with　that　of　the　traditional　3Cr13　coating.　The　results　show　that　three　coatings　exhibit　dense　layered　structure　with　the　porosity　below　3.3%.　There　is　an　obvious　effect　of　reduction　of　oxides　in　coatings　when　Al　or　B　element　is　added　to　cored　wire,　and　B　element　exhibits　stronger　effect　in　deoxygenization.　Meanwhile,　the　coating　with　less　oxides　content　possesses　higher　thermal　conductivity.　The　FeCrB　coating　with　the　lowest　oxide　content　in　three　coatings,　and　its　thermal　conductivity　is　8.99　W·m-1·K-1　at　25°C.　The　microhardness　of　FeCrB　coating　is　about　828.3　HV0.1,　and　its　wear　resistance　is　3.7　times　better　than　that　of　3Cr13　coating.