The Ni60 coating was prepared on the surface of TC4 substrate using laser cladding technology to improve its hardness and wear resistance. Scanning electron microscopy, XRD, microhardness tester, and wear tester were used to analyze the effect of lap ratio on the coating microstructure, hardness and wear resistance. The results show that as the lap ratio increases from 30% to 50%, the grain size in the remelted zone initially decreases and then increases. At a lap ratio of 40%, the grain size in the remelted zone is minimal, with a dense microstructure. The non-remelted zone′s lower part consists of columnar and dendritic crystals, while the upper part comprises equiaxial and cytosine crystals. The coating is mainly composed of γ-Ni、Cr₂₃C₆、Cr₇C₃、TiC、α-Ti and other phases. When the lap ratio is 40%, at which the average hardness of the coating reaches 855 HV, which is 2.4 times of that of the substrate, and the wear loss is 5.05 mg, which is 32% of that of the substrate, indicating that the Ni60 coating can improve the hardness and wear resistance of TC4 alloy.