Different methods concerning the technics of soil solution obtainment and their classification are presented. It is indicated that the "real" soil solution can be obtained only in this methods in which the constant level of moisture was kept. There are above all, the diplacement, centrifuge and suction methods and their modifications. This methods allow to obtain the similar chemical composition of soil solution. Differences between methods concern only the quantity of solution and the time of the procedure analysis. It is possible to use this methods to work out the computer models of soil solution - realistic imitation of soil solution in situ. Other methods, above all field methods and extraction methods, allow to obtain the soil solution but its chemical composition is not "real".