Elution and removal experiments of heavy metals such as Pb, Cu and Cd from the artificial contaminated soil were carried out by using citric acid and EDTA as chelating agents. Optimum conditions for batch operation were found to be 0.1 mol/dm(3) citric acid, pH 3 to 4, and 30 minutes of contact time. When EDTA was used instead of citric acid. a suitable concentration was 0.025 mol/dm(3). From consecutive elution experiments by a column method, Volume of eluent required to meet the environmental standard value for soil contamination was investigated. It was found that heavy metals can be removed by passing 14 times as much chelating agent solution as the amount of deposited soil. The obtained dissolution rate is considered to be applicable as a design guide when the method of heap leaching type is applied to the treatment of contaminated soil.