三叉神经痛为常见的顽固性疼痛性疾病，手术治疗方法颇多，但采用经颞硬膜下入路行三叉神经半月节前感觉根大部切断术来冶疗三叉神经痛却较少受到重视。通过７６例治疗经验及随访结果，证明这一治疗方法具有治愈率高、并发症少及病死率低的特点。具体手术方法及操作要点进行了详细叙述。 Trigeminal neuralgia is a common intractable painful disease, surgical treatment of many, but the use of subdural approach via the temporal subtalar trigeminal nerve sensory root resection to the majority of the treatment of trigeminal neuralgia has received less attention . Through 76 cases of treatment experience and follow-up results show that this treatment has the characteristics of high cure rate, fewer complications and low mortality. Specific surgical methods and operating points were described in detail.