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【目的】探讨呼吸衰竭患者急救时机与患者生存状况的关系。【方法】收集呼吸衰竭患者200例的临床资料,根据插管时机的选择分为对照组和观察组,统计两组患者的生存情况,分析插管时机与患者生存状况的相关性。【结果】观察组的病死率为25.40%,明显低于对照组55.41%,差异有统计学意义(P <0.05)；观察组平均呼吸机使用时间(53.47±13.42)h,短于对照组(67.52±15.72)h,差异有统计学意义(P <0.05)。Logistic 回归多因素分析结果显示：急救时机、年龄、营养状况、pH、动脉二氧化碳分压(PaCO 2)、动脉氧分压(PaO 2)及血液中乳酸平均含量是影响急性呼吸衰竭患者生存的独立危险因素。【结论】急救时机与呼吸衰竭患者的病死率及平均呼吸机使用时间密切相关。“,”[Objective]To investigate the effect of emergency treatment timing on the survival situation of patients with respiratory failure.[Methods]200 clinic patients with respiratory failure were collected.upon the timing of intubation conditions,Patients were divided into the observation group and the control group,The rate of survival and the risk factors associated with survival were analyzed.[Results]The mortality rate in the observation group was 25.40%,significantly lower than the control group (55.41%),the difference was sta-tistically significant (P <0.05 );the average ventilator time of observation group was (53.47 ± 13.42 )h, which was shorter than the control group (67.52 ± 1 5.72)h,the difference was statistically significant (P <0.05 ).Logistic regression analysis showed that:time of intubation,age,nutritional status,averages pH, PaCO 2 values (mm Hg),PaO 2 values (mm Hg),and the average content of lactic acid in the blood (mmol/L)compose the risk factors associated with survival situation in patients with respiratory failure.[Conclusion]The timing of emergency and average time of ventilator.are closely related to the mortality in patients with re-spiratory failure.