This study focused on the preparation of CoCrW alloy coatings on K417G alloy substrates using laser deposition technology. The influence of laser process parameters on the dilution rate of the coating was investigated, and the parameters were optimized accordingly. Multi-pass multilayer coating preparation tests were then conducted to analyze the microstructure, microhardness, and frictional wear properties of the coating. The experiments results showed that: Laser power and scanning speed have a large impact on the dilution rate of the coating, and reducing the laser power and scanning speed can effectively reduce the dilution rate. The coating prepared by the optimized laser process parameters has good macroscopic morphology and no internal cracks, the microstructure from the bottom to the top of the coating is columnar crystal and equiaxed crystal, respectively. The main phases of the coating are the γ-Co, M₇C₃, and M₂₃C₆.The average microhardness of the coating is 605.97 HV, which is 1.8 times of the average microhardness of the substrate. Under room temperature friction conditions, the average friction coefficient of the coating is 0.37, and the wear amount is 0.8 mg in 20 min, compared with the matrix, it is reduced by 55% and 37% respectively. The coating′s wear mechanism was slight abrasive wear with adhesive wear, while the substrate′s wear mechanism was severe abrasive wear with adhesive wear.