目的：观察神经刺激仪在神经阻滞中的应用效果。方法将行臂丛神经阻滞的手术患者140例随机分为研究组和对照组各70例。研究组在神经刺激仪的引导下进行麻醉，对照组使用传统针刺寻异感方法进行麻醉，2组麻醉药物均为罗哌卡因＋利多卡因。对比2组神经阻滞起效时间、操作时间、VAS评分以及术后不良反应发生情况。结果研究组阻滞起效时间、操作时间均明显短于对照组，VAS评分及不良反应总发生率均明显低于对照组，差异均有统计学意义（P ＜0．05）。结论神经刺激仪较传统方式缩短了准备时间和起效时间，在神经干周围就能产生效应，不会造成神经损伤，增加了麻醉效果和安全性，值得在临床上应用。“,”Objective To observe the application effect of nerve stimulator in the nerve block. Methods 140 pa-tients with brachial plexus block were randomly divided into the study group and control group,each of 70 cases. The study group under the guidance of nerve stimulator anesthesia,the control group using the traditional way of anesthesia. Two groups use the same anesthetics,ropivacaine + lidocaine. The time of onset,the time of operation,the VAS score,and the incidence of adverse reactions were compared between the two groups. Results The onset time of blockade and the operation time of the study group were shorter than those of the control group,the difference was statistic significantly(P < 0. 05). The VAS score and the total incidence of adverse reactions in the study group were lower than those in the control group,the difference was statistic significantly(P < 0. 05). Conclusion Compared to the traditional way,nerve stimulator in nerve block can shorten the preparation time and onset time,can produce effects around the nerve stem,not hurt the nerve,increased the anesthetic effect and safety,worthy of clinical application.