The practice of minimally invasive brain surgery must be treated on a case-by-case basis, as different surgeries practice different minimally invasive practices. In the case of cerebral hemorrhage, minimally invasive CT-guided puncture and drainage surgery is performed. The general approach is to perform some preoperative positioning, determine a basic point, drill a hole on the surgical bed, place a drainage tube in the hematoma cavity, and gradually drain the hematoma. For minimally invasive surgery of aneurysm, most of them take the way of femoral artery placement, puncture and place some special guide wires and catheters, through which the aneurysm is placed in the intracranial area, and then embolization is performed by applying spring coils, stents and special glue, which is minimally invasive surgery of aneurysm; while the surgery of pituitary aneurysm in the nose is done by entering the neuroendoscope from the nose, and then gradually layer by layer It is minimally invasive surgery, so it must be clarified according to the situation and what kind of minimally invasive surgery it is.