Cranial repair is a relatively routine neurosurgical procedure that has been developed over thousands of years in the history of medicine. The effectiveness of the repair is not only at the surgical level, but also at the level of the repair material. For example, the titanium alloy material, which is widely used in clinical practice, is more advanced and mature, but still has some problems and is not very satisfactory. In recent years, skull repair materials have undergone many improvements and innovations, and are becoming more and more advanced. At present, the more commonly used cranial bone repair material is titanium mesh, this titanium mesh material has made great progress compared with the previous traditional material, however, it is not particularly ideal, there are still some problems. Compared with traditional materials, titanium mesh has its advantages; however, when compared with the more advanced polyether ether ketone (PEEK) materials, the disadvantages of titanium mesh become apparent. Of course, one advantage of titanium mesh over PEEK is that it can be slightly less expensive. But its disadvantages are indeed many, such as titanium mesh is a metal material, higher thermal conductivity, insulation performance is not good, may cause sensitivity to hot and cold reactions; in addition may cause patients chronic pain, subcutaneous fluid more; this metal material will also affect the future to do a variety of medical examinations, such as CT nuclear magnetic ah, will appear artifacts, resulting in diagnostic interference; in addition, titanium mesh tensile lightness, stability, elasticity, etc. also have a large Differences. If conditions allow, it is still recommended to do this polyether ether ketone repair, also called PEEK material. This PEEK material is bionic bone, which can completely restore the anatomical structure of the skull, can be highly compatible with the autologous skull, and is comparable to the performance of the autologous skull in terms of elasticity, heat transfer, hardness, and stability, especially for pediatric patients, and can better adapt to the growth and development of the autologous skull.