During dump leaching proceeding,the solute transport is very complicated and difficult to be described quantitatively because
of the physical,chemical and environmental factors.The solution in the dump was divided into
mobile solution and immobile solution.Based on the ore particle leaching proceeding and shrinking core leaching model,three interfaces were provided,which were very important for analysing the solute transport proceeding.The solute transport mechanisms in the mobile solution and immobile solution were different.Basic equation of the solute transport was provided based on the conservation of mass.The mobile-(immobile) solute transport model was improved in the solution classifying method.Result of(analysis) indicates that transport mechanisms of the solute in different types of solution are different.Solute in the immobile solution is transported in the form of molecule diffusion.The solute in the mobile solution is transported in the forms of mechanical dispersion and convection.