Cranial repair is a relatively routine neurosurgical procedure that has been developed over many years of medical history. The effectiveness of the repair lies not only in the surgical level, but also in the material used for the repair. For example, the titanium alloy material that is widely used in clinical practice, although it is more advanced and mature, still has some problems and is not ideal. In recent years, cranial bone 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 compared with the previous traditional material has been greater progress, however, it is not particularly ideal, there are still some problems. Compared with the previous traditional materials, titanium mesh has its advantages; but with the more advanced polyether ether ether ketone (PEEK) materials, titanium mesh shortcomings became apparent. Of course, compared with the polyether ether ketone material, titanium mesh has an advantage that the cost may be slightly lower. But its shortcomings are indeed many, such as titanium mesh is a metal material, higher thermal conductivity, thermal insulation is not good, may cause sensitivity to hot and cold reactions; in addition may cause chronic pain, subcutaneous accumulation of fluid; this metal material will also affect the future to do a variety of medical examinations, such as CT MRI ah, artifacts will appear, resulting in diagnostic interferences; in addition to the titanium mesh of the lightness of the tensile, stability, elasticity, etc. also have a larger Gap. If the conditions allow, it is recommended to do this polyetheretherketone repair, also known as PEEK material. This PEEK material is bionic bone, can completely restore the anatomical structure of the skull, can be highly compatible with the autologous skull, and in the elasticity, heat conduction, hardness, stability, etc., and the performance of the autologous skull, especially for children, can be better adapted to the growth and development of the autologous skull.