A biomedical implant and the manufacturing method thereof are disclosed. The biomedical implant includes a protecting layer on a substrate with a magnesium surface. The manufacturing method of the biomedical implant includes following steps. A substrate is immersed into a first carbonated solution containing Fe3+and bicarbonate. The treated substrate is immersed into a second carbonated solution to form a self-assembled protecting layer on the surface of the magnesium substrate.一種生醫材料,包含一具有純鎂表面的基材,及附著於純鎂表面的保護層,其中保護層為鎂鐵層狀雙層氫氧化物所構成。一種製備具有保護層的生醫材料之方法,包含將純鎂浸置於一含有二氧化碳及Fe3+的第一碳酸溶液中,以及浸於一鹼性的第二碳酸溶液中形成一保護層。110...步驟120...步驟
