The skull plays a big role, not only supporting the head and face, but it is also a shield that protects the intracranial tissues from the outside world. However, when skull defect occurs due to accidental injury, the skull becomes incomplete and the closed cranial environment is destroyed, which is quite dangerous. Cranial defect can not be careless, if the defect area is greater than 3cm should be paid attention to, long-term cranial defect is not treated, patients will appear a series of cranial defect syndrome, such as often feel headache, dizziness, mood will also have abnormal changes, if the defect site occurred in the second collision, the consequences are even more unimaginable. Therefore, after the occurrence of cranial defect, patients should go to the hospital for cranial repair surgery in time, so as to better restore the integrity of the skull, rebuild the closed cranial environment and reduce the damage to themselves. Can cooperative medical treatment for skull repair be reimbursed? Many patients are concerned about this aspect, in fact, in general, it can be reimbursed, but the reimbursement ratio cannot be determined, and it has to be combined with the local health insurance policy and the repair materials used. At present, many hospitals are using titanium mesh material for skull repair surgery. Titanium mesh material is indeed much more advanced and cheaper than those materials used earlier in the past, but titanium mesh material also has some shortcomings and more postoperative problems, such as easy infection and rejection, sensitivity of the surgical site to the external hot and cold environment, and influence on postoperative medical examination. The polyether ether ketone peek material that we widely use now has many advantages, and its performance in all aspects is similar to that of autologous cranial bone, which makes up for all the shortcomings of titanium mesh material and becomes the ideal material for skull repair at present. In addition, we also introduce the concept of aesthetic plastic surgery in our surgery, and carry out peek skull repair plastic surgery in a comprehensive manner, so that the post-operative recovery is more natural and beautiful.