Possibility to dope Y2O3 particle on the surface of superalloy sample and the relationship between homogeneity and irradiation parameters of laser have been investigated by means of laser irradiation. The reaults show that when the precoating powder quantity is 0.035 g/cm2 and 0.05 g/cm2, if the laser power density is selected as 1.76×104 W/cm2 and scanning speed as 0.36 m/min, homogeneous distribution of Y2O3 particle in melt-doped region can be got on macroscale, the average content of yttrium oxide in the region is 1.2～2.0 wt%.