Abstract: Waste incineration power generation technology plays an important role in solving the current urban solid waste pollution problem and adjusting the urban energy structure.The composition of waste is complex,and a large number of corrosive gases and molten deposition salts are generated in the incineration process,which causes serious high-temperature corrosion to the water-cooled wall tubes and superheater tubes in the waste incineration boiler. In order to alleviate the high temperature corrosion problem of metal tube materials in the waste incineration power generation,the high temperature corrosion mechanism and protection technology of metal materials in waste incineration environment were studied by modern characterization methods such as electron microscope,energy spectrum analyzer and X-ray diffraction. Among various surface treatment technologies,laser cladding technology has shown great potential for the development of the nickel-base alloy cladding layer.The Inconel625nickel-base alloy cladding layer prepared by laser cladding technology had no obvious defects inside and forms a good metallurgical bonding interface with the substrate.It was applied to the surface of water-cooled wall tubes and superheater tubes,which can effectively reduce the corrosion problem of equipment components of waste incineration boiler and improve the incineration efficiency and safety of the boiler.