Cranial repair is a common brain surgery procedure to repair skull defects caused by traumatic brain injuries and craniotomies. When it comes to this procedure, patients inevitably have to consider the cost, and some patients ask what the price of the cranial repair material is and what the full cost is. This is largely based on the material used for the repair. Like the traditional plexiglass, light apatite and calcium phosphate bone cement materials, etc., the price is cheaper, but because of its more shortcomings, now has been basically less use; and now the clinical use of titanium mesh materials widely used in the price is not too high, but this material, although there has been some progress, but there are still certain shortcomings and complications, is still not the ideal material. At present, the better cranial bone repair material is polyether ether ketone, i.e. PEEK material. We use this material to carry out cranial bone repair surgery, and achieve good clinical results. This material can be customized in three dimensions to restore the anatomical structure of the skull, in addition, this PEEK material is highly compatible with the autologous skull, and in terms of elasticity, heat conduction, hardness, stability, etc., and the performance of the autologous skull is comparable to the performance of the autologous skull, especially for children patients, can be better adapted to the autologous cranial growth and development.