Based on overland hydrogeological condition and pollution situation of the Shengli oilfield, the authors studied the components and pollution extent of organic pollutants in shallow underground water and soil. The result shows that the shallow underground water and soil have been subjected to pollution by organic pollutants and formed many shallow underground water contaminated areas. It is revealed that organic pollutants have 16 kinds of species, among which one or two species are of fairly high content. The extent of the contamination is controlled by the number of oil-mining wells, oil extraction years and relevant layout of petroleum and chemical industry.