A method for manufacturing a bone implant, comprising the following steps: (a) Provide a semi-finished product made from a material for bone implants including calcium sulfate powder through a molding process, the molding process includes making the material for bone implants Carry out 3D printing； (b) The semi-finished product is subjected to a sintering procedure to obtain a sintered product. The sintering procedure includes at least three heating gradient steps. In each heating gradient step, the heating range is 75 to 300°C, and the heating rate ranges from 0.5 to 0.5. 5°C/min, the holding time range is 30 to 180 minutes, the final temperature range of the sintering process is 900 to 1100°C, and the holding time range is 60 to 180 minutes； and (c) set on the surface of the sintered product A protective layer formed by excipients is used to obtain a bone implant. The bone implant prepared by the method for manufacturing the bone implant has better compressive strength and longer degradation time.一種骨植入物的製造方法，包含以下步驟：(a) 提供一個由一包括硫酸鈣粉末的骨植入物用材料經成型程序所製得的半成品，成型程序包括將骨植入物用材料進行3D列印； (b) 將半成品進行燒結程序得到燒結品，燒結程序包含至少三次的升溫梯度步驟，於每次升溫梯度步驟中，升溫範圍為75至300°C，升溫速率範圍為0.5至5°C/分鐘，持溫時間範圍為30至180分鐘，燒結程序的最終溫度範圍為900至1100°C且持溫時間範圍為60至180分鐘；及(c) 在該燒結品的表面設置一層由賦形劑所形成的保護層，得到一骨植入物。該骨植入物的製造方法所製得的骨植入物具有較佳的抗壓強度及較長的降解時間。
