Cranial defects have become a relatively common affliction in current society, and in neurosurgery clinics are very frequent cases. Cranial defects have many adverse effects on the organism and can have serious consequences, even life-threatening. For example, without the protection of the hard shell, the soft tissues inside the skull, including the brain, will be very dangerous, and the impact of external forces may directly damage the brain tissue, which may be life-threatening in serious cases. In addition, the lack of a part of the skull, the intracranial environment will change, the intracranial pressure is not stable, the intracranial life activities will be affected, and then the normal operation of the brain and nerve function will be impaired, which will result in a series of craniosynostosis syndrome. In addition, the impact on the appearance of beauty, then the lack of a part of the skull scalp collapse, it will be more difficult to look at, many patients are more concerned about the appearance of the change, resulting in psychological trauma, mood, or even depression, etc., so timely cranial bone repair is very necessary. Cranial repair surgery is currently a relatively routine operation in neurosurgery, in which the repair material is a relatively large impact on the repair effect of a factor. Many patients ask about the difference between PEEK cranial repair and titanium mesh. Yes, at present, cranial bone repair surgery in the use of cranial bone repair materials, the most important is the titanium mesh and polyether ether ketone PEEK these two materials, they are still a big difference, titanium mesh is a relatively traditional material, it is also applied for many years, it is relative to some of the earlier materials still have its advanced, but also not very satisfactory, there are some defects and deficiencies, such as its There are some defects and shortcomings, such as its histocompatibility, its hardness, its thermal insulation is not ideal, and this metal material affects the radiation transmission, interference with the magnetic field, affecting the ct nuclear magnetic examination, and so on these problems, will cause some postoperative complications. Polyether ether ketone PEEK material is more advanced, more excellent performance of a new type of material, it is a special polymer materials, very good to avoid the above problems, PEEK material in the histocompatibility, hardness, elasticity, thermal insulation, ray projection, and shaping effect and the human autologous cranial bone performance is comparable to the performance of the very close to achieve a more desirable repair effect, has become a cranial bone repair, and now the material has become the most important material for the repair of cranial bone, and the material has become the most important material for the repair of cranial bone. It has become the new trend of cranial bone repair materials.