Medical materials refer to inanimate materials used to contact biological tissues to form functions. They are medically good auxiliary materials, including polymers, metals, ceramics, glass or composites of various materials. It is used in artificial organs, surgical repairs, dental materials, dressing materials, orthopedic devices and medicines. These materials are well functional and mechanical, but good biocompatibility is also critical. Plasma surface modification can achieve good compatibility. Plasma can only be used. The thin surface of the surface is treated without changing the properties of the material and the effect of sterilization, so the plasma surface treatment is also more widely used on medical materials.