Cranial repair is usually caused by traumatic brain injury resulting in injury. Cranial repair is a common procedure in brain surgery to repair cranial defects caused by traumatic brain injury and craniotomy, etc. Cranial trauma and brain surgery to remove bone flaps, removal of benign tumors or tumor-like tumors of the skull, chronic osteomyelitis of the skull, etc. Due to the change of shape of the cranial defect area, the scalp is affected by atmospheric pressure, which makes it invaginate and compress the brain tissue. It is something difficult for every patient to face, and the brain tissue loses both strong protection and affects the aesthetics of the skull. Many patients who have injured their skull by accident hope to regain their health through surgery. Modern medical technology is advanced and skull repair surgery is gradually becoming a routine neurosurgical procedure. Many patients are also willing to actively undergo surgical treatment after understanding and comparing. Damage to the skull is a difficult thing for every patient to face. The brain tissue loses both strong protection and the aesthetics of the skull. Many patients who have damaged their skull by accident hope to regain their health through surgery. Modern medical technology is advanced and skull repair surgery is gradually becoming a routine neurosurgical procedure. Many patients are also willing to actively undergo surgical treatment after understanding and comparing. The preoperative anesthesia and sterilization are no different from the regular surgery. During the surgery, the surgeon will cut the scalp at a suitable location and bluntly separate the periosteum according to the damaged part, shape and size of the skull. The exposed bone window is clearly visible after hemostasis of the surgical field. The surgeon takes the preoperative three-dimensional plasticized bone plate repair piece, adjusts the shape according to the physiological structure of the damaged area, fixes and resets it, and then sutures the scalp layer by layer. A successful cranial repair is thus completed. Although the procedure is a routine surgery, any surgery involving vital organs of the human body should not be taken lightly. The procedure requires a high level of clinical experience and the surgeon’s ability to deal with all possible risks during the operation.