Although high-speed laser cladding significantly enhances cladding efficiency, surface coarse defects easily occur on the high-speed cladding layer surfaces. The hybrid process of high-speed laser cladding and laser remelting can obviously improve the cladding layer surface quality. The Fe90 stainless steel coating was prepared on the surface of 27SiMn hydraulic column material by laser cladding. The surface morphology, microstructure, element distribution and phase composition of the cladding layer were analyzed by using the ultra depth of field microscope and X-ray polycrystalline diffractometer. The properties of the coating were verified by the hardness test, wear resistance test and electrochemical corrosion test. The experimental results show that the surface roughness of laser remelting coating is reduced by 8.5% compared with that before remelting, and the microstructure inside the coating is finer and uniform. There is not phase disappearance and new phase appearance, but the phase content increases. In terms of performance, the hardness after remelting is 2.6 times that of the substrate, the wear weight loss is reduced by 95%. The laser remelting technology improves the surface quality of the cladding layer and effectively improves the coating performance.