Because of its high strength

low density

high temperature resistance and corrosion resistance

ceramic materials have a broad application prospect in aerospace field. Aiming at the limitation of traditional molding method

the digital light possessing of hydroxyapatite is studied in this paper. Using micrometer hydroxyapatite powder and photo sensitive resin

the hydroxyapatite ceramic slurry for 3D printing was prepared and the hydroxyapatite ceramic blank was formed. Based on TG–DSC thermal analysis

the degreasing process parameters of ceramic green body were determined

and hydroxyapatite ceramic samples were sintered. The surface morphology of the sample was observed by SEM. The phase composition of the sample was analyzed by X-ray diffraction and the density was measured by Archimedes drainage method. The bending strength of the sample was measured by a universal material tester. The experimental results show that hydroxyapatite ceramic samples with density of 94.9% and flexural strength of 41.3MPa can be fabricated by using digital light pocessing.