<p>Some new Ni-based composite coatings with different amount of TiCN particles were prepared on the surface of Ti-6Al-4V (TC4) substrate by laser cladding. The microstructure and phases were obtained by scanning electron microscopy, energy-dispersive spectrometer and x-ray diffractometer. The microhardness and wear resistance were also tested by Vickers hardness tester and friction and wear tester. The results showed that all coatings had a good metallurgical bonding with TC4 substrate. Some new phases appeared in coating, such as Ti, Ti₂Ni, TiCN, TiC, TiN, Cr₂Ti and TiAl₃. The microstructure was mainly composed of block crystals and dendrites. When the amount of TiCN was 15% and 20%, spherical crystals appeared in coating. The values of average microhardness were 885.1, 890.6, 923.2, 973.7 and 943.1&#xa0;HV_0.2, respectively. And the wear volumes were 0.39, 0.13, 0.12, 0.09 and 0.44&#xa0;mm³, respectively. When the amount of TiCN was 15%, the coating had the maximum average microhardness due to the appearance of TiC, TiN and Ti₂Ni phases. It also had the best wear resistance. It can be seen that the average microhardness and wear resistance were improved obviously due to the addition of TiCN particles.</p>