In recent years, laser has been introduced into clinical medicine, providing a new way of surgery, that is, to vaporize and coagulate biological tissues with high intensity of Radiant energy. Since the invention of the laser by Mayman in 1959, laser has been increasingly widely used in clinical practice, even surpassing conventional surgery in some aspects. For example, the use of laser coagulation to treat certain forms of retinal detachment, as well as the treatment of cervical and vaginal tumors in gynecology, have shown the superiority of lasers. Similarly, lasers also show the potential to become important instruments in Neurosurgery