Cranium is a hard and indispensable bone in human body, which plays a pivotal role in the normal operation and health of human life activities. When external factors or cranial lesions occur in the cranium itself, it will cause cranial defects, break the normal life trajectory and reduce the quality of life. When cranial defects occur, it is obvious that the patient’s appearance will be seriously damaged, some will be collapsed, some will be bulged, no matter which one it is, it will make the patient become less confident and have a deep sense of inferiority; in addition, without the protection of the skull, the brain tissue will be easily damaged, which will easily lead to abnormal cerebrospinal fluid circulation and blood supply disorders. Although cranial repair is a routine neurosurgical procedure, it is also a large craniotomy, and it is recommended to go to a large public hospital for the surgery. It is reported that many hospitals commonly carry out titanium mesh cranial repair, selecting titanium mesh as the cranial implant material, but because of the implantation of titanium as a metal material and the use of covered repair, there are many postoperative complications such as the rate of rejection infection and the exposure of abrasive skin material. In view of this, our hospital, after years of clinical exploration and summary, upgraded and improved the original cranial bone repair technology to form a mature technology – peek material cranial bone repair, which uses the new peek as the cranial bone repair implant material, greatly reducing the postoperative rejection rate, infection rate; at the same time, the embedded repair method, effectively avoiding In addition, the innovative introduction of plastic concept, combined with the unique mesh aperture design and unique tissue separation and reset technology, effectively avoid temporal muscle atrophy, ensure the activity of the tissues, ensure the symmetry of the postoperative head shape, and achieve the purpose of natural and beautiful appearance.