Concentrations of heavy metals in soils of 4 truck gardens and 2 sewage-irrigated zones in Pudong, Shanghai were determined. Evaluation was made of indexes of single contaminants and combined pollution according to the national standard for evaluation of soil environmental quality. Both values of the 4 gardens were less than 1, indicating that they meet the requirements of soil environment for producing hazard-free food. Nine soil samples collected from the two sewage irrigated regions, the indexes of monomial and synthetical pollution of Pb, Cr and As were less than 1, and of Cd, Cu, Zn and Hg were more than 1, especially those of Cd, the most serious one, which were 6.6 and 4.84, respectively. About 33 % of the 9 soil samples were moderately polluted and 67 % seriously polluted. The cause of the pollution is the application of sewage sludge from the Huangpu River and chemical pollution from village enterprises.