目的　长期追踪铸造工人的肺通气功能下降情况。方法　调查 70例在职铸造工 ,分别测定其 10年前后肺通气功能 ,同时监测作业环境的粉尘浓度。结果　铸造工肺功能各指标及实测值占预计值的百分比 10年后明显下降 (除FEV1% ) ,且年下降值也明显高于标化正常人 ;相关回归分析 ,肺功能与身高、体重成正相关 ,而与年龄、吸烟成负相关。结论　铸造行业可致长期作业工人的肺通气功能明显下降 Objective Long-term follow-up foundry workers decreased lung ventilation. Methods A total of 70 in-service foundry workers were surveyed, their pulmonary function was measured 10 years ago, and the dust concentration in the working environment was also monitored. RESULTS: The indexes of castors’ lung function and the percentage of their predicted value to the predicted value decreased obviously (except FEV1%) 10 years later, and the annual decline values ​​were also significantly higher than those of normalized persons. Correlation analysis showed that lung function was positively correlated with height and weight Related, but with age, smoking is negatively correlated. Conclusion The lung ventilation function of long-term workers in the foundry industry is significantly reduced