Abstract: Acoustic neuroma is a kind of benign tumor originating from the vestibular nerve,and most tumors are located near the cerebellopontine angle.For acoustic neuromas with obvious clinical symptoms,tumors gradually increasing during follow-up,and pressure on the surrounding brain tissue,the best treatment is surgery.However,due to the abundant nerves and blood vessels in the cerebellopontine angle,how to remove the tumor completely and avoid damage to the surrounding brain tissue,nerve,and blood vessel is the key to surgical treatment.With the in-depth research on the membranous structures surrounding acoustic neuroma,we believe that understanding the composition of the membranous structures surrounding the acoustic neuroma and its relationship with the tumor,useing the characteristics of the membranous structures，and protecting all the membranous structures through certain techniques during surgery，maybe an important way to remove the tumor tissue as completely as possible and avoid damage to the surrounding tissues of the tumor resulting in postoperative neurological loss.The use of the membranous structures of acoustic neuromas may play a crucial to role in removing acoustic neuroma.

Key words: acoustic neuroma, membranous structures, microsurgery