Abstract: The easy peeling of laser cladding yttrium-stabilized zirconia（YSZ） ceramic coating is a difficult problem affecting the application of thermal barrier coating. Ni/YSZ composite thermal barrier coating（TBC） was prepared on the substrate of 310S alloy by laser cladding technology, and the physical properties of YSZ ceramic powder were improved by adding Ni powder to YSZ ceramic powder. The results of the orthogonal test of laser cladding process parameters show that the laser power has the most significant influence on the quality of Ni/YSZ composite TBC, while the beam diameter has the least influence. The optimal process parameters of laser cladding Ni/YSZ composite ceramic coating are as follows: laser power 800 W, laser scanning speed 8 mm·s^-1, beam diameter 4.5 mm, overlay rate 32.4% and feed rate 6.1 g·min^-1. The microstructure, elemental distribution, and phase composition were characterized using SEM, EDS, and XRD. The results indicate that the laser-coated Ni/YSZ composite ceramic coating has a dense microstructure. The Ni powder adheres to the YSZ ceramic powder, forming a Ni/YSZ composite ceramic powder. This increases the surface free energy of the YSZ ceramic powder and enhances the wetting of the metal substrate by the YSZ ceramic material. When the addition of Ni is 15 wt%, the bonding performance of the composite thermal barrier coating is best, and the porosity is 0.031%.