The skull is a very important organ in the human body, it plays an important role in protecting the brain tissue and maintaining normal intracranial pressure, however, there are still some people who have skull defects in their lives for various reasons. It is necessary to carry out skull repair surgery, then skull repair is a major surgery? In fact, in today’s developed medical environment, cranial repair has been a more conventional surgery in neurosurgery, the operation is not complex, not very difficult, can be said to be not a big operation. However, the material used for cranial bone repair is very important. Although the titanium mesh material widely used in clinical practice is much more advanced than other traditional materials, there are still many problems or complications, which affect the repair effect and limit the quality of life of the patients in the future. Currently, the most . The new polyether ether ketone material PEEK to repair the skull, has achieved unprecedented good results. “The three-dimensional reconstruction technology of this PEEK material can perfectly restore the physiological structure of the skull according to the patient’s cranial CT data, and accurately fit the defective bone window. In addition, the performance of this material in terms of elasticity, thermal insulation, hardness, stability and other aspects are comparable to the autologous skull, which is a perfect cranial bone substitution material, and does not have a foreign body reaction, and will not affect interference with the future radiological examination. .” Basically, it can be said that when the repair with peek is completed, it is not much different from the patient’s own cranium.