The brain is the commander of the human body, governing the activities of all parts of the body and directing the maintenance of all life operations. The cranium is the strong fortress that protects this command and plays a very important role. Therefore, if the cranial bone is damaged due to irresistible factors, it needs to be repaired as soon as possible. The price of cranial bone repair generally consists of two parts: 1. Surgery, hospitalization and medical expenses. These costs can be grouped together, of which the surgical fee is usually fixed. The other costs will be slightly different according to the specific situation of the patient with cranial defect, the length of hospitalization, the amount of drugs used, etc., but the difference is not too big in general. 2. Material cost. This is the most influential factor among all costs. There are still differences in the cost of different materials. Like the widely used titanium mesh material cost is relatively low, but there may be some problems, some patients may occur after surgery, rejection, infection, material exposure, sensitivity to hot and cold environment, poor shaping effect, etc.. The more desirable material is polyether ether ketone PEEK, which is slightly more expensive but has excellent performance, and is highly regarded for its hardness, elasticity, thermal insulation, histocompatibility, and radiopacity, which are all very close to autologous cranial bone. Therefore, the full cost of cranial bone repair surgery is based on a combination of these factors, especially the material. Patients with cranial defects are recommended to choose the appropriate material for cranial bone repair surgery to restore their health as soon as possible.