Aiming at the migration and diffusion of heavy metal pollutants in soil, the finite volume method is used to discretize the basic equations that heavy metal pollutants transport in two-dimensional steady water flow, and then the calculation model for migration in saturated soil is obtained. The dynamic process of heavy metal pollutants transporting in different conditions is simulated by Matlab to study the migration laws of heavy metal pollutants. The research shows that the concentration contours of heavy metal pollutants gradually changes fr...