The effect of CeO2 addition on the microstructure and corrosive wear behavior of laser-cladded coating was investigated by means of scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive X-ray analysis and microhardness testing. The results showed that a small amount of CeO2 added to the cladded coatings can accelerate the dissolution of tungsten carbide particles and make their shape smooth. Adding CeO2 can also hasten the spheroidization of the eutectic structure in laser-cladded coating. There is an optimum addition amount of CeO2 to laser-cladded coating, with which the coating has excellent resistance to corrosive wear, while a less or excessive addition amount of CeO2 will decrease the resistance to corrosive wear of the coatings.