With the development of digital three-dimensional （3D） technology， neurosurgery has entered a stage of development where preoperative model reconstruction is combined with clinical surgical approach research. The diagnostic rate of tumors in the cerebellopontine angle region is gradually increasing， and the therapeutic focus has shifted from complete surgical resection to preserving neural function. Research on sigmoid sinus is becoming increasingly important. However， there are few big data studies on measuring the anatomy of relevant populations. This paper reviews existing domestic and international literature， providing theoretical basis for establishing a database of sigmoid sinus anatomy， enhancing neurosurgeons' understanding of the cerebellopontine angle region， and developing new methods for resection of tumors in the cerebellopontine angle region.