Since the establishment of MVD technology in the 1960s, MVD surgery has become an effective method for the treatment of cranial nerve hyperexcitability diseases such as trigeminal neuralgia, hemifacial spasm, and glossopharyngeal neuralgia, and has been promoted and popularized worldwide. After more than 70 years of development, MVD technology has made a lot of progress, involving MVD surgical principles, surgical approaches, decompression range, decompression methods, decompression materials, electrophysiological monitoring technology, anti-adhesion technology, complex blood vessels Decompression techniques during compression, anesthesia techniques, and treatment techniques for relapsed patients will be introduced separately below.