Objective To find out the contamination of organochlorine pesticide residues and lead in tea in Tongzhou district. Method Pesticide residues of hexachlorocyclohexane ( HCH) ，dichloro-diphenyl-trichloroethane ( DDT) were determined by gas chromatography and lead was determined by atomic absorption spectrometry. Results The detection rate of HCH was 92. 1% ; the qualified rate was 2. 9% ; the detection range was < 0. 36-385 μg / kg. The detection rate of DDT was 89. 4% and the majority of them was p，p′-DDT; the detection range was 1. 4-189. 0 μg / kg. The detection rate of lead was 97. 6% . Conclusion It was suggested that the situation of HCH and DDT pesticide residues in tea was not optimistic and the level of lead remained high in Tongzhou district. More supervision is needed to guarantee the health of residents.