Abstract:China has abandoned organochlorine pesticides (HCHs and DDTs) production and usage for more than 20 years. A field survey was conducted in a contaminated industrial site in southern Beijing, China. Concentrations and distribution of the organochlorine pesticides (α-, β-, γ-, δ-HCH, p,p′-DDT, p,p′-DDE, p,p′-DDD and o,p’-DDT) in profiles of soil were investigated. Results showed that mean concentrations of total hexachlorocyclohexane isomers (HCHs) and total dichlorodiphenyltrichloroethane isomers (DDTs) in soils ranged from 13.19 to 148.71 mg/kg, and from 3.02 to 67.42 mg/kg, respectively. Organochlorine pesticides (OCPs) concentration peaked at the surface and declined in soil profile with depth and the amounts of HCHs in three profiles of soil were larger than DDTs. Composition analysis indicated that there was a trend of degradation of OCPs in the site, but the mean of HCHs and DDTs concentration were over the state warning standard limit (HCHs:0.50 mg/kg; DDTs:0.50 mg/kg). According to current land use development, health risk assessment with CalTOX and Monte Carlo analysis showed that health risks mainly came from two exposure pathways: dermal uptake and inhalation, and that the total risk values all exceeded the general acceptable health risk value(10-6). The sensitivity analysis indicated that five parameters significantly contributed to total risk. The results will be available for risk management in OCPs contaminated industrial site.