Abstract: Objective To study lead hazards among workers with occupa tional lead exposure.Methods A lead-acid battery manufacturing enterprise was investigated and the air lead concentrations were detected.Physical examination and questionnaire survey were carried out among the workers.Results The tmie-weighted average concentrations of lead were 0.23,0.42,0.24,0.41 mg/m³ and 6.40,12.60,15.67,15.33 tmies higher than that of acceptable concentration for working sites of package fiml,assembly,welding,and bridge welding,respectiverly.Moreover,the average blood lead(Pb-B)con tent for 110 workers was 434.21?127.55 μg/L and the maxmium was 800.10 μg/L.There was no statistically difference in Pblevel between workers of different age,woking tmie,monthly income,nationality,and education level.Statistically sig nificant difference was found in Pb-Blevels among workers with different status of working task,smoking,a lcohol drinking, and gender.Conclusion Lead hazards is serious among the workers in the battery manufacturing enterprise and occupation al health supervision and lead exposure control measures should been forced.