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目的：探讨气管内滴入利多卡因对呼吸机相关性肺炎吸痰所产生的影响。方法：选取从2012年1月到2014年1月收治的40例需要吸痰呼吸机相关性肺炎患者，随机将所有患者分成对照组（20）与观察组（20），对照组气管内滴入生理盐水，观察组气管内滴入利多卡因，对比两组吸尽痰液时间、发生心律失常概率以及发生呛咳反应概率。结果：观察组吸尽痰液时间为（15.26±2.54）s，对照组吸尽痰液时间为（26.57±2.75）s，观察组明显短于对照组（P＜0.05）。结论：对于呼吸机相关性肺炎患者在进行吸痰以前在气管中滴入利多卡因，临床效果较好，能使患者痛苦得以减轻，不容易出现不良反应，操作简单，具有临床应用价值。“,”Objective: To investigate the effects of intratracheal instil ation of lidocaine on ventilator-associated pneumonia suction generated . Methods: Patients with associated pneumonia from January 2012 to January 2014 were treated 40 cases of need suction ventilator , al patients were randomly divided into a control group ( 20 ) with the observation group ( 20 ) , the control group intratracheal instil ation saline intratracheal instil ation of lidocaine in the observation group , compared two groups of exhaustion sputum time , the probability of the occurrence of arrhythmias and choking reaction probabilities. Results: The exhaustion sputum time (15.26 ± 2.54) s, the control group exhaustion sputum time (26.57 ± 2.75) s, the observation group was significantly shorter than the control group (P <0.05). Conclusion: For patients with ventilator- associated pneumonia during tracheal suctioning before instil ation of lidocaine in clinical better, to al eviate the suffering of patients can not prone to adverse reactions, simple operation, with clinical applications.