The surface quality of the porous scaffold was optimized by adjusting the laser power, scanning speed, and scanning spacing in the laser selective melting process parameters. The experimental results show that: the defects on the surface of the microporous scaffold are mainly microcracks and holes; as the scanning power gradually increases, the defects of the holes and microcracks are significantly reduced, and the density of the porous scaffold also increases; however, as the scanning speed and the gradual increase of scanning distance, the increase of pores and micro-crack defects, the dense and comprehensive mechanical properties of porous scaffolds decrease. Experiments show that when the art parameters are S=0.05 mm, P=130 W, V=500 mm/s, the surface of the microporous scaffold has the fewest defects, the best surface quality, and its highest density is 96.41%, and its compressive strength reaches the maximum. It was 583 MPa.