Abstract: 718 steel plate was welded by gas shielded surfacing, and the microstructure, hardness, and wear resistance of Cr-Mo-Ni and Cr-Mo-W-V flux cored wire surfacing layers were studied. The results show that the two flux cored wire surfacing layers without weld defects were well fused with the base metal. The microstructure of Cr-Mo-Ni flux cored wire surfacing layer was mainly composed of martensite and a small amount of retained austenite. The microstructure of Cr-Mo-W-V flux cored wire surfacing layer mainly consisted of fine martensite, much ferrite and very little retained austenite, and carbides precipitated in ferrite phase. The average hardness of the Cr-Mo-Ni flux cored wire surfacing layer was 571 HV, which was higher than that of Cr-Mo-W-V flux cored wire surfacing layer (519 HV). The wear resistance of the two flux cored wire surfacing layers was better that of the base metal, and the wear resistance of Cr-Mo-W-V flux cored wire surfacing layer was the best, because the elements of tungsten and vanadium in the microstructure of Cr-Mo-W-V flux cored wire surfacing layer improved the grain refinement and wear resistance carbide precipitation.