本文在100侧颞骨上,对颅中窝径路的内耳道手术中内耳道定位的方法.进行了解剖学的观察和测量,提出利用岩浅大神经、面神经管裂孔、岩浅大神经沟与面神经管迷路段的夹角(平均为97.3°),及内耳道底投影点至面神经管裂孔的距离等,作为内耳道定位的主要解剖标志和参考数据.该法比磨出上半规管透明线为标志优越. This article in 100 lateral temporal bone on the middle cranial fossa intracranial internal ear canal surgery method .Analysed and measured anatomy, the use of shallow petrous nerve, facial nerve canal cracks, shallow petrous nerve groove and facial nerve canal labyrinthine (Average of 97.3 °) and the distance from the projection point of the inner ear canal to the facial nerve canal, as the main anatomical landmark and reference data for the localization of the internal auditory meatus.The method is superior to grinding the transparent line of the upper semicircular canal.