Abstract: In order to fabricate a porous hard bone scaffold mold with biological compatibility,it was made of hydroxyapatite based bioceramic because of the viscosity and support effect of bioceramic slurry.Then the microstructure of the solidified scaffolds after laser sintering and high-temperature post-process was observed with a scanning electron microscope.Furthermore, the surface roughness was measured with an atomic force microscope.The results show that the density and the surface finish of scaffolds can be increased after post process,which is good for the attachment and growth of osteoblast-like cells.