In this study,the parts have been successfully fabricated by Laser Engineered Net Shaping(LENS)based on Ni60/WC composite powder,the influence of energy density and different powder feeding process combinations under the same energy density on the dimensional accuracy,defect rate,microhardness and friction and wear properties of the parts were studied.The results revealed that the increase of energy density gradually increases the molding efficiency and the molding efficiency can be improved by adjusting the powder feeding rate and the gas flow rate under the same energy density.Under the process of energy density 333 J/mm3,powder feeding rate 6 rpm,and gas flow rate 6 L/min,the highest molding efficiency is obtained,and the maximum height is 22.7mm.The optimal mechanical properties were obtained with an energy density of 283 J/mm3,powder feeding rate of 6 rpm and gas flow rate of 4 L/min and the wear rate was 36.04μm3 N -1mm -1.When the energy density is 291 J/mm3,the microhardness of the part is the largest,which is 68.1 HRC.When the energy density is 291 J/mm3,the defect rate is the smallest,which is 0.07%.