The blood lead value of lead poisoning in adults, the state has a boundary between occupational and non-occupational groups, and there is an occupational standard GBZ 37-2015 for lead poisoning in occupational groups, which stipulates the blood lead value ≥ 600μg/L and urine lead ≥ 0.58μmol/L, as well as the diagnostic criteria for occupational lead poisoning and other indicators. The blood lead value of non-occupational people over 200μg/L is called blood lead overload, and further improvement of lead-related target organ examination and lead repellent test are needed to clarify whether there is poisoning.