A　surface　layered　structure　of　the　Al0.5CoCrFeNiSi0.25　high-entropy　alloys　was　prepared　via　laser　remelting　(LR).　The　microstructures　were　characterized　via　optical　microscopy,　scanning　electron　microscopy,　and　electron　backscatter　diffraction　techniques.　The　microhardness　and　wear　properties　of　the　LR　alloys　were　evaluated　in　comparison　with　the　as-cast　alloy.　The　results　showed　that　the　microstructure　of　the　surface　layers　can　be　tailored　by　changing　laser　scanning　speed.　With　increasing　the　laser　scanning　speed　from　3　mm/s　to　7　mm/s,　the　thickness　of　the　molten　pool　gradually　decreased.　Meanwhile,　the　microstructure　of　the　layers　changed　from　BCC　+　FCC　dual-phase　layers　to　BCC　phase　layers　(BCC　+　B2　phase).　And　the　thickness　of　BCC　+　FCC　dual-phase　layers　gradually　decreased.　When　the　laser　scanning　speed　reached　7　mm/s,　the　microstructure　of　the　surface　layer　was　only　the　BCC　phase　and　the　hardness　of　the　BCC　layer　was　doubled　compared　with　the　as-cast　alloy,　which　also　resulted　in　a　sequential　increase　in　scratch　resistance.　The　relatively　high　hardness　of　the　layered　structure　also　led　to　its　macroscopic　wear　resistance　higher　than　that　of　the　as-cast　alloy,　and　the　wear　mechanism　was　mainly　abrasive　wear.　©　2022