In　this　research,　FeCrMoMn　coatings　with　excellent　corrosion　resistance　and　metallurgical　quality　were　deposited　on　the　45#　steel　substrate　by　conventional　and　high-speed　laser　cladding　at　the　scanning　speed　of　0.4　m/min,　40　m/min　and　70　m/min,　respectively.　Their　microstructure,　phase　composition,　hardness　and　corrosion　resistance　were　characterized　and　compared.　The　results　show　that　compared　with　the　conventional　cladding,　high-speed　laser　cladding　leads　to　a　decrease　in　grain　size,　heat　affected　zone,　and　the　dilution　rate　of　the　coatings　due　to　solute　trapping　of　coatings.　Metallurgical　bonding　is　formed　between　the　substrate　and　the　coatings,　and　the　hardness　and　electrochemical　corrosion　resistance　of　the　coatings　are　also　significantly　improved.