目的了解铅作业人员心电图的变化。方法对某蓄电池厂456名铅作业人员及210名非铅接触人员进行心电图调查分析。结果接铅组心电图异常率明显高于对照组,差异有统计学意义(χ2=15.66,P<0.01)。结论铅作业人员长期在超出国家标准的环境工作,会引起心血管的变化,应关注铅作业人员的心电图改变。 Objective To understand the changes of ECG in lead workers. Methods A total of 456 lead workers and 210 non-lead exposed workers in a battery factory were investigated by ECG. Results The abnormal rate of electrocardiogram in lead group was significantly higher than that in control group (χ2 = 15.66, P <0.01). Conclusion Long-term lead workers in the environmental work beyond the national standard, will lead to cardiovascular changes, should focus on lead workers ECG changes.