Abstract: An extension steremapping of organochlorine pesticide (OCP) of soil, dry and wet deposition, airborne particles(PM10 and PM2.5) covered 784km2 with a density of 1 sample/km2 within Beijing city was carried out. 784 soil samples( 49 composed soil samples), 19 samples of dry and wet deposition, and 20 samples of airborne particles (PM10 and PM2.5) were sampled.Results indicate that the average content of HCH and DDT in soil is 8.80±11.83ng/g, 108.99±301.90ng/g in 2000, respectively, 10.09±9.60ng/g of HCH, 12.99±13.51ng/g of DDT in dry and wet precipitation in 2005. The amount of flux of HCH and DDT in dry and wet precipitation in 2005 were measured and the mean levels are 996.57±939.96g/a·km2, 1291.53±1342.28g/a·km2, respectively. Consequently, average HCH and DDT concentrations in airborne particles have been obviously increased from 0.01786ng/g, 0.01672ng/g in 2002 to 0.294±0.205ng/m3, 1.037±1.301ng/m3 in PM10, 0.01731ng/m3, 0.02353ng/m3 in 2002 to 0.217±0.137ng/m3 , 0.522±0.773ng/m3 in PM2.5 in 2005, respectively. It suggests that there are still using pesticides containing chemical composition of HCH and DDT in Beijing and its surrounding area, although the organochlorine pesticide were strictly banned in 1983.A prediction on HCH and DDT contents in soil in Beijing in 2020 were taken out, and a scenario of soil environmental quality of HCH and DDT with less improvement in Beijing in 2020 was predicted, compared with in 2000. A effective method for improved soil environmental quality of HCH and DDT is controlling and reducing to the usage quantities of pesticides containing chemical composition of HCH and DDT in Beijing and its surrounding area.