In the light of the basic electrochemical properties of electrolyte solutions and on the basis of the electric field distribution theory of conductive electrical prospecting, this paper,taking homogeneous isotropic media as an example, makes a fairly detailed discussion on what factors are related to the time needed for the migration of ions for some distance in the point-source electric field and to the masses of substances extracted by electrodes (liquid and solid element receivers) .on such a basis,in Combination with the modelling results of the geoelectrochemical godograph,the algorithms are given for ionic mobi lity, migration distance and migration concentration.