测定和评价了秦岭特长铁路隧道施工通风布局和通风效果，对隧道的施工全过程的尘毒浓度进行了统计分析。结果表明，采用单机压入式通风基本上可满足秦岭隧道施工通风需要。 The ventilation layout and ventilation effect of Qinling special railway tunnel construction were measured and evaluated. The dust poison concentration in the whole process of tunnel construction was statistically analyzed. The results show that the use of a single press-in ventilation can basically meet the construction of Qinling tunnel ventilation needs.