Benign tumors such as meningioma and nerve sheath tumor are common in skull base, and most of them have good prognosis if they can be completely resected. However, because the tumor is located in the skull base, the tumor is closely related to important nerves and blood vessels, and the tumor is located deep in the brain base, it is difficult to expose the tumor during surgery, so the surgical risk is very high, the rate of complete resection of the tumor is not high, and the postoperative complications are high, so it is one of the most difficult and risky surgeries in neurosurgery. Good exposure of the tumor is the key to resection, and it is often necessary to pull the brain tissue to increase the exposure of the tumor, for which automatic brain pressure plate was invented. The occurrence of cerebral strains has increasingly caused a reflection among knowledgeable people in the neurosurgical community, and recently foreign neurosurgeons have gradually tried to perform surgery without the use of automatic cerebral pressure plates whenever possible, which has reduced the occurrence of complications and improved surgical outcomes. And the application of modern surgical microscope provides good illumination, magnified and clear surgical field, which provides a powerful weapon for identifying and protecting structures such as neurovascular at the skull base, and also can significantly reduce the need for brain traction. The following is a pre- and post-operative comparison of an elderly male with anterior skull base olfactory sulcus meningioma (combined with hypertension, diabetes mellitus, and old cerebral infarction in the cerebellar hemisphere). This patient was prone to complications such as cerebral contusions and intracerebral hematomas due to the combination of hypertension, diabetes mellitus, and old cerebral infarcts in the cerebellar hemispheres. The tumor was completely resected under microscope with a diameter of about 5 cm, and no brain strain injury occurred. The left picture shows the preoperative MRI, and the red arrow refers to the tumor; the right picture shows the postoperative MRI within 48 hours, and the red arrow refers to the residual cavity after total resection of the tumor. The intraoperative photograph shows the well-protected optic nerve and cerebral vessels after tumor resection.