The skull is like a protective film for the brain, it is very hard, but when it meets irresistible external factors, the skull is also very easy to be injured. After the skull is damaged, the patient’s appearance will be damaged, and at the same time, the intracranial pressure and intracranial environment are forced to change, and the patient’s body may accordingly appear some uncomfortable symptoms, so it is worthwhile to pay attention to the problem of cranial bone defects. Currently, cranial repair surgery is a more direct and effective way to solve the problem of cranial defects, and cranial repair surgery is to fill the defective area of the skull with artificial materials or autologous bone materials to restore the physiological and anatomical structure of the skull, and to restore the normal intracranial pressure and intracranial environment. How many levels of neurosurgical cranial repair is it? This is what many patients want to know, they are very worried about the safety of the operation, but in fact in neurosurgery this is a routine operation, and in the very early days, the whole procedure is not very complicated, the difficulty factor is not high, not a very big operation. However, in order to achieve a better surgical effect, the choice of repair material is very important, many local hospitals are widely used titanium mesh material, although there is some progress, but there are inevitably some problems, such as postoperative rejection, infection is relatively high, and even there is the phenomenon of titanium mesh material exposure and so on. Is there no good repair material? Of course not, our team has adopted a safer and more advanced material to carry out the surgery, which is a new type of polymer material, i.e. polyether ether ketone PEEK material, which makes up for the shortcomings of the titanium mesh material, and its various properties are very excellent, coupled with the introduction of the concept of cosmetic plastic surgery in our surgery, the postoperative effect is truly natural and beautiful, which is the ideal material for cranial bone repair surgery at present.