Cranial repair is a relatively common routine procedure in neurosurgery. In the current society, the economy is growing, life is more convenient, and clothing, food, housing and transportation have been greatly improved. But while we enjoy these conveniences, there may be some problems, such as traffic accidents are more frequent and people’s diseases are more frequent. And some traffic accidents, production safety accidents, and their own craniocerebral diseases may require craniotomy treatment, debridement and decompression, which ultimately cause cranial defects. Therefore, at present, cranial defects have become a very common disorder in neurosurgery, and cranial bone repair surgery has been carried out more widely than before. It is understood that many local hospitals choose the traditional titanium mesh material for skull repair, the effect is not ideal. Although the performance of titanium mesh, a metal material, is somewhat improved compared to earlier materials such as bone cement, acrylic, plexiglass, silicone, etc., there are still many defects and deficiencies, coupled with the fact that the operator’s operation may not be very delicate, which may lead to rejection, infection, wear and tear of the scalp, and exposure of the material after the operation. Therefore, you should choose a repair material that is similar to the autologous cranium and has no rejection reaction. Currently, we use the new polyetheretherketone peek material for cranial bone repair. This material, as a newly advanced medical implant material, is highly adaptive to the human skeleton. The properties of polymer biomaterials dictate that the PEEK bone plate fits very well into the bone window. By simulating the patient’s cranial data, the repair bone plate can be perfectly shaped using 3D reconstruction technology, which not only has a good appearance, but also performs excellently in terms of strength, stability, and thermal insulation. Of course many patients often ask if they can go under health insurance for cranial repair. Cranial repair surgery should be covered by medical insurance in most places, but this is subject to the regulations of each local medical insurance administration. Patients do not need to worry about the cost, with medical insurance is eligible for medical insurance policy.