Cranial defects are a common neurosurgical pitfall that occurs in a wide range of people. The number of patients with cranial defects caused by various accidents, traffic accidents and brain diseases is very large in our country every year, among which there are many children who have to face the severe trauma caused by cranial defects at a young age. In addition to the loss of face value, large cranial defects not only destroy the integrity of the cranial cavity, but also easily cause intracranial pressure instability, cerebrospinal fluid circulation, blood circulation and other abnormalities, and may affect the normal operation of the brain and nerve function. As children are in the stage of growth and development and learning, prolonged cranial defects are very detrimental to their physical and mental health and interpersonal communication. Cranioplasty not only repairs the defective skull, restores the appearance and protects the function of the skull, but also helps to restore the neurological function of the patient. Usually, children with cranial defects only need one surgery to realize the integrity of the skull, however, there are still a lot of patients in the clinic who undergo material replacement after the surgery and undergo a second repair surgery. Nowadays, most local hospitals are able to perform skull repair surgery, where the surgeon adopts certain medical materials to repair the defective area, and the patient’s head can be restored to integrity after the surgery. However, some patients who received titanium mesh cranial repair surgery had a higher chance of postoperative rejection and infection, and some had the titanium mesh exposed, which had to be removed and repaired. The majority of patients who undergo a second repair choose peek cranioplasty because it is far superior to titanium mesh repair in terms of both the effectiveness of the repair and the significant reduction in postoperative complications. Therefore, parents are advised to take their children to a regular hospital for peek cranioplasty. Our team is constantly upgrading the technology and optimizing the design of materials, and currently has 4 technological innovations. We have also innovatively added plastic concepts to the traditional peek skull repair, upgrading it to peek skull repair, which has helped many patients around the country to solve the problems caused by skull defects, winning the recognition and praise of patients.