With the continuous improvement of diagnosis and treatment technology, the focus of acoustic neuroma surgery has shifted from reducing surgical mortality to improving the retention rate of cranial nerve function[1,2,3,4]。 Because the cochlear nerve function of most patients has been lost to varying degrees before operation, it is generally difficult to retain hearing; However, facial nerve function is rarely abnormal before operation, and it is expected to preserve facial nerve function after tumor resection. The preservation of facial nerve function depends not only on the physician's skilled surgical skills, but also on the good cooperation with the neuroelectrophysiological monitoring team[5,6], also depends on the correct treatment after different degrees of facial nerve injury. However, the current reality is that a considerable proportion of acoustic neuroma surgical teams lack intraoperative neuroelectrophysiological monitoring assistance, and mainly rely on the experience of surgeons; There is also a lack of scientific and reasonable repair techniques after facial nerve injury. Therefore, the probability of facial paralysis in patients with acoustic neuroma after operation is still very high, and some patients will remain with different degrees of facial nerve dysfunction[7,8]。 At present, there is still a lack of expert consensus or guidelines on the prevention and treatment of facial paralysis during perioperative period of acoustic neuroma in China. In view of this, we organized multi-disciplinary experts from across the country to jointly write this consensus, in order to standardize the protection of facial nerve during the perioperative period of acoustic neuroma and improve the functional reconstruction level after facial nerve injury.