Cranial repair is a relatively routine procedure in neurosurgery, and it is also a very long-standing and currently classic procedure with very mature surgical techniques. During the long history, cranial repair materials have also evolved with the evolution, and now there are very good and excellent materials. In cranial repair surgery, the choice of better repair materials is an important factor in the outcome of the repair. At present, most of the repair materials used in most local hospitals for skull repair surgery are traditional titanium mesh materials. The metal titanium mesh material still has some shortcomings and defects, which may cause postoperative rejection, infection, abrasion of the scalp, resulting in material exposure, affecting the postoperative CT MRI, including its insulation is not good, the patient may be sensitive to the external hot and cold environment after surgery, resulting in discomfort, and many other problems. Therefore, titanium mesh material is not a very ideal material for skull repair. At present, there is a more advanced material called polyetheretherketone PEEK, which has excellent performance and can overcome the above-mentioned problems of titanium mesh material, and has become a new trend of cranial repair material. We are now widely using this advanced material for skull repair surgery and have achieved great success in the clinical setting. The cost of cranial repair cannot be generalized, it includes the cost of hospitalization, surgery, anesthesia, nursing care, medication, and of course, the cost of the repair material is the main factor. Although the cost of PEEK is relatively high, it is worth the cost because of its excellent performance and repair effect, while the cost of titanium mesh is low, but there may be various problems that outweigh the loss.