The Ni-based metal-ceramic coatings on the surface of mild steel were cladded by a high power CO2 laser. The effects of rare-earth oxide La2O3 and CeO2 on microstructure and properties of Ni-based metal-ceramic coatings were investigated. The result shows that the microstructure and property of clad coatings with RE-oxide were balanced and better compared with the coatings without RE-oxide, the crackle, hole and entrapment in the coatings were reduced and TiC particles were slippy.