Highnickel solderWC cemented carbide particle composite surfacing electrode was prepared by molybdenum wire hydrogen furnace sintering under the following conditions: SiC forming boat was used as the mold, YG8 WC cemented carbide particles with the size of 2-5 mm were used as the wearresistant phase, and CuZnNi alloy was used as the matrix metal. NiCrBSi alloy powder was added to enhance the nickel and chromium contents in matrix metal. The fracture morphology of the formed electrode and the composition of the matrix metal were analyzed. The results showed that the distribution of cemented carbide particles in the electrode was relatively uniform. The mass fraction of nickel in matrix metal was up to 32.39%. Appropriate amount of chromium could enhance the strength of matrix metal, and meanwhile improve the corrosion resistance and high temperature oxidation resistance. During the surfacing welding using oxyacetylene flame, the matrix metal had good fluidity and good wettability with the matrix. The hardness of matrix metal in the welding layer was greater than 60HRA, which could be widely used in wearresistant fields such as petroleum and mining.