The human brain tissue can function properly without the support of some other tissues, such as the skull. The skull can be said to be a piece of hard protective shell of the brain tissue, the cranium of the protection of the brain at all times, to provide a more secure and stable operating environment. However, when the skull is damaged in some accidents, the brain tissue loses the protection of the shell and becomes vulnerable. Cranial defects are very important, if not repaired in time, the brain may be vulnerable to external aggression at any time. Therefore, it is important to repair the skull as soon as possible. At present, titanium mesh material is widely used for cranial bone repair, but some patients have titanium mesh exposed after surgery, the main factor causing the exposure is the poor histocompatibility of titanium mesh, but also may be related to the operation of improper operation or postoperative incision healing poor infection. It is understood that titanium mesh is not only the existence of postoperative exposure, but also because it is a metal material, the patient is easy to be sensitive to hot and cold stimuli after surgery, easy to produce or store fluid in the subcutaneous tissues are susceptible to infection, the lesion localized discomfort or chronic pain may occur. Such as temporal fossa, eyebrow frame and other special parts of the repair after the appearance of poor results and so on. Therefore, patients should choose a material with excellent performance in all aspects when performing cranial bone repair. The emergence of PEEK material makes the development of cranial bone repair material to a new height, peek material has very good biocompatibility, it makes the patient in the postoperative basically will not occur rejection and other adverse conditions, in addition PEEK radioactivity can be permeable, postoperative CT/MRI tracking convenient, no artifact interference; plus wear-resistant and corrosion-resistant, non-conductive and non-thermal conductivity, very good avoidance of implantation due to the difference between the temperature of the discomfort caused by. discomfort after implantation. This PEEK material is bionic bone, can be highly compatible with the autologous skull, which is a good improvement of the titanium mesh material problems, and has become the preferred cranial bone repair material for doctors and patients.