Cranial repair is not a new subject, but a constant one. Cranial repair has been attempted since ancient times, and the materials used in cranial repair have changed over thousands of years and are now becoming more and more advanced. Nowadays, most hospitals generally use titanium mesh for cranial repair surgery. It can be said that titanium mesh is already more advanced than the materials used in the past, such as animal bone, light apatite and calcium phosphate bone cement. However, titanium mesh material still has some problems, there are still more shortcomings and discomfort, such as the patient’s postoperative sensitivity to hot and cold reactions, local chronic pain, more subcutaneous effusion; after the repair surgery, affecting the patient to accept CT, MRI and other medical examinations; chronic cutaneous ulcers, stress perforation resulting in failure of cranial bone repair; temporal fossa, zygomatic arch, eyebrow frame, and other irregularities of the cranial parts of the face and skull repair appearance of the cosmetic effect of the lack of good and so on. At present, new cranial bone repair materials have been widely used in cranial bone repair surgery, namely polyether ether ketone material, also called PEEK material, can better solve these problems. This PEEK material can be three-dimensional shaping, precise anastomosis, in addition, this is a bionic material, can be highly compatible with the autologous skull, and in the elasticity, heat conduction, hardness, stability, etc., and the performance of the autologous skull, especially for children patients, can be better adapted to the autologous cranial growth and development.