Abstract： In treating superior laryngeal neuralgia (SLN),superior laryngeal nerve blocks (SLNBs) can provide immediate relief of persistent pain.Although SLNB was effective,the procedure can increase the risks due to the proximity to the carotid artery,external vein,and other vessels.To avoid complications such as advertent intravascular injection,local anesthetic toxicity from intravascular absorption,and intratracheal injection,we successfully blocked the superior laryngeal nerve under ultrasound guidance in three patients suffering from SLN.The written informed consent before treatment was obtained for each patient participating in this study.