Abstract: The characteristics of laser cladding and its application status quo in surface modification of metallic alloys is introduced,and then the research status quo of fabrication of functionally gradient coating using laser cladding is reviewed.After analysis,it can be found that the different thermophysical parameters between the reinforced particle and matrix are the main reason to cause crack and failure of coating.Fabrication of in-situ synthesized and functionally gradient composite coating or components using laser direct fabrication technique is the future development direction.