The TIG welding is used for surfacing to study the cladding layers of Ni,3,Al and Ni,3,Al+Cr,3,C,2, intermetallic compoundbased metal powder-cored wires on different substrate materials.The results show that:（1） After cladding, the average dilution rate of Ni,3,Al+Cr,3,C,2, wire（34.55%） is lower than that of Ni,3,Al wire（42.8%）;（2） The microstructure of cladding layer after surfacing with pure Ni,3,Al metal powder-cored wire is mainly single γ’-Ni,3,Al phase, and when using Ni,3,Al+Cr,3,C,2, wire, the cladding layer is mainly composed of γ’-Ni,3,Al phase and MC type and M23 C6 type carbides;（3）The microhardness of Ni,3,Al+Cr,3,C,2, cladding layer is significantly higher than that of pure Ni,3,Al cladding layer;（4） Using Ni,3,Al,Ni,3,Al+Cr,3,C,2, metal powder-cored wire for cladding on 4 kinds of experimental substrates, the bead has good metallurgy bonding and wetting, and few defects after surfacing, and the hardness of the surfacing layer is higher than that of the base metal, so it can be used for surfacing of related materials.