It is well known that if remedial measures are not taken in time after skull defect, not only the face value is greatly reduced, but also the intracranial pressure is unstable, and the cerebrospinal fluid circulation, blood circulation and various neurological functions cannot function normally, and some patients have dizziness and headache symptoms. Therefore, early cranioplasty has many benefits for appearance and all aspects of the body. The best time for cranioplasty In short, cranioplasty is the repair of a defective area of the skull with a suitable material by a neurosurgical specialist to restore the integrity of the skull. Before undergoing this procedure, patients should also be aware of the indications for the procedure. Generally, 3 months after debridement, a defect larger than 3 cm in diameter is considered an indication for surgery. Titanium mesh and peek material are the two most common materials used in clinical practice, but peek material is more effective in terms of stiffness, insulation, and longevity. The question of “whether the skull repair process can be covered by medical insurance” is determined by the local medical insurance policy. The advantage of Peek cranioplasty is that after the basic repair is done precisely, some details of the shape are also improved to achieve the double effect of symmetry on both sides of the skull and aesthetic appearance after the surgery. This procedure is a major advancement and improvement for neurosurgery. In addition, the reconstruction of a closed and stable cranial environment provides strong protection for the brain and intracranial soft tissues, guarantees the normal operation of intracranial blood circulation, cerebrospinal fluid circulation and various neurological functions, and greatly improves the quality of life of patients.