In fact, facial spasm, trigeminal neuralgia and glossopharyngeal neuralgia are all neurological dysfunctions caused by the compression of nerves by blood vessels. The most effective treatment is to move the blood vessels that are compressing the nerves away from them, which means that microvascular decompression surgery is by far the preferred treatment option and the only minimally invasive technique that promises to cure the disease completely. However, not all patients are able to achieve the desired results and not all procedures are absolutely safe, so new technologies are constantly being applied to make up for this deficiency, making the procedure more effective and safer. What exactly are the new technologies? In the past, it was impossible to know which vessel was the real cause of the disease, so the surgery was blind. However, the application of the current electrophysiological monitoring technology can solve this problem. The main techniques include: AMR monitoring, where AMR disappears only after the responsible vessel is separated and displaced, otherwise AMR persists; ZLR monitoring, where the monitoring probe appears only when placed on the causative vessel and not when placed on other non-causative vessels; EMG monitoring, which can help the surgeon determine the true lesion site and indirectly determine the location of the causative vessel, and is useful for The identification of the causative vessel at the lateral end is of great help. 2, whether the surgery is complete monitoring technology whether the decompression surgery is complete directly determines the effect of surgery, in the past, mainly relying on the experience of the surgeon to judge, but not accurate enough. Currently, it is advocated that the surgical process assessment should be based on scientific and accurate methods. This includes regional evidence, vascular evidence, and electrophysiological evidence. Regional evidence means that the surgery must explore all the sites where the etiologic vessels may exist and cannot be missed; vascular evidence means that all the vessels in contact with the cranial nerves must be separated and displaced and cannot be missed; electrophysiological evidence means that the surgery can only be ended after both AMR and ZLR disappear, otherwise it may be ineffective after surgery. 3.Techniques to reduce accidental intraoperative vascular injury For example, the technique of trans-cerebellar fissure access surgery can significantly change the exposure of the surgery, expand the surgical field, reduce the pull on the cerebellum, enable the surgical operation from multiple angles, and reduce the direct operation on the rock vein. 4. Techniques to increase surgical safety include BAEP monitoring technique, BTEP monitoring technique, SEP monitoring technique, no-draw revealing technique, warm water flushing technique, perioperative application of hormones and vasodilating drugs technique, warming technique, etc. These techniques are not yet widely used in China, or even not applied at all. We expect to pay more attention to the development and progress of the techniques, and create conditions for their application in clinical practice to maximize the effect of surgery and the safety of surgery for the benefit of the majority of patients.