In order to explore the microstructure and properties of NiCoCrAlY coating under different laser scanning speed, the NiCoCrAlY coating was melted and deposited on the IN718 surface by laser cladding technology. The forming condition, microstructure, hardness, friction and wear properties of the coating were analyzed, and the dynamic relationship among scanning speed, microstructure and coating properties was established. The results show that the NiCoCrAlY coating has a good shape at different scanning speeds, and the solidification structure is columnar dendrite and equiaxed dendrite which is perpendicular to the solid-liquid interface and grows directionally and epitaxially. With the increase of scanning speed, the coating temperature gradient increases, the solidification rate increases, the grain structure is refined, and the coating microhardness increases slightly. At the same time, with the increase of the scanning speed, the average friction coefficient and wear rate of the coating first decrease and then increase. The results show that the wear resistance of the coating obtained at 12 mm/s scanning speed is better.