Aneurysm interventional embolization, generally referred to as intracranial aneurysm interventional embolization, is a minimally invasive procedure that requires an arterial puncture from the root of the thigh, followed by delivery of a microcatheter into the aneurysm to occlude the aneurysm with medical materials as a means of preventing bleeding from the aneurysm and achieving the therapeutic goal. The main steps include the preparation of the patient, the preparation of instruments, the preparation of medicines and so on. 1. Patient preparation: The patient lies flat on the operating table, which is connected to the DSA machine (Digital Subtraction Angiography), and general anesthesia is administered to the patient. After the anesthesia is completed, the surgeon will fully disinfect and towel the surgical site. Common surgical sites are mainly in the bilateral groin area, where the femoral artery pulsation is most pronounced. 2. Preparation of instruments: Prepare medical materials such as sheaths, microcatheters and spring coils. The doctor will puncture the patient’s femoral artery and place a sheath tube, that is to say, make a channel which connects the outside world to the femoral artery. On top of this passage, a microcatheter passage is created, which goes straight to the aneurysm. Through the microcatheter passage, the doctor will effectively embolize the aneurysm, and the embolization materials are mainly spring coils, stents, and medical adhesive. The doctor will do an imaging before the end, there is nothing wrong with the imaging, the operation is over. 3. Preparation of medicines: including anesthesia medicines for anesthesia process, backup rescue medicines, and so on. Intracranial aneurysm interventional embolization surgery without craniotomy, less pain, less trauma, postoperative recovery is also fast, it is recommended that patients choose regular hospitals for interventional embolization surgery.