To evaluate the effect of vinasses on sodic soils reclamation two experiments were performed in a Typic Pellustert characterized by a very high ESP. massive structure and total missing of the capacity to conduce water (HC = O mm/day). High electrolytic concentration waters (like vinasses) applied to soil columns promoted soil aggregation, improved soil structure and, in consecuence, a better hydraulic conductivity was gotten. As the soil physical properties get better Na is leached and replaced by Ca resulting in soil reclamation success. Amount of replacement was related to the solution concentration and to the volume of solution added. Results concluded that the reclamation of a sodic soil depended critically on the maintenance of a hydraulic conductivity high enough to assure Ca ions to move in the soil to remove exchangeable Na and the consequent leaching of deep soil layers. Underfield conditions it was confirmed that vinasses can be used on the reclamation process because they cause changes in the soil permeability like those promoted by high electrolytic concentration waters. Application of 2. 000 tlha of vinasses diluted in water made it possible to recover the hydraulic properties of the studied soil in a short period of time on the leaching of a great amount of the exchangeable Na initially present in the soil.