An investigation of soil pollution was carried out in several typical industrial and mining areas and wastewater irrigation zones in Liaoning.The results indicated that concentrations of heavy metals in these sites were higher over the background values.The high concentrations of Cd,Pb,Hg and Cu,in particular,should arouse more concerns since they are already well beyond the criteria set by the Governmental of China for soils of agricultural use.And some companion relationship existed between the various metals.The heavy metals in the soil mainly come along with the untreated wastewater used for irrigation,tailings and slurry from metal ore mining.