The transport and distribution of dissolved chemicals are influenced by water movement in the soil system.In order to understand the advances in underground water pollution, salt transport in salt-affected soils and salt accumulation in coast soils affected by seawaters, the studies of the past 2 decades on the theoretical development and practical applications of solute transport simulation in soil-water systems are reviewed.The theories and numerical simulations on dispersions, adsorption, uptake and transport of solutes in unsaturated and saturated soils are discussed in the presented paper.