Magnesium alloy CNC medical parts have light specific gravity, high specific strength, good electromagnetic shielding performance, good shock resistance, easy processing, recyclability and good biocompatibility and degradability. They are used in 3C products, automobiles, aerospace and biological It has broad application prospects in the medical field. Population aging has become an increasingly serious social problem in our country, which has brought a huge demand for biomedical materials such as bone implant materials. As a new type of biodegradable biomedical materials, medical magnesium alloys, such as cardiovascular stents and bone implant materials (bone nails, bone plates, etc.), have become the hotspots of current frontier research.