Abstract: The study area, a farmland near the eastern sewage outfall of Baoding, Hebei province, has been polluted by sewage irrigation over recent 40 years. The sewage mainly comes from Baoding Swan Chemical Fiber Co. Ltd. and Baoding Banknote Paper Mill, and the main crops are wheat and corn. Powdery clay is the main ingredient of the aeration zone and the thickness range of the aeration zone is between 2.4 m and 2.7 m. In this paper, samples of different depths and different distances from the outfall were collected for benzene, toluene, dichloromethane, chloroform, benzopyrene analysis. According to the physical and chemical characteristics of soil and typical pollutants in aeration zone and the dynamic conditions of groundwater, the influencing factors on the transport of typical organics were analyzed in aeration zone and groundwater zone.