The authors worned out the new method of combined electric-erosion, electric-chemical processing of dielectrics in electrolytic medium. This article is dedicated to the study of the process of passing of electric current through the aqueous solution of electrolyte. With the help of the measurements of volt-ampere characteristics of current passing through the electrolytes under research the total electrolytes character of dependence, which has 4 transition regimes, and the, was determined. The characteristics of transition regimes depend on both electric regimes and the types of electrolytes and their concentration and don’t depend on the distance between the electrodes. It’s characteristic of the third phase that a plasma envelope appears which is accompanied by distraction of dielectric. It’s shown that tension and corresponding current density, at which the plasma envelope occurs, exist for every type of electrolyte when the material of a cathode is not changed. It’s determined the correlation between these parameters and the coefficient of surface- tension of studied electrolytes. The results of the study of the dependence of the speed of volumetrically broaching upon such technological parameters as a put in electric power, the frequency of revolutions of an electrode instrument, the frequency of a relaxation generator and the concentration of electrolyte. The problem of the mechanisms of the influence of electric discharge in electrolyte upon dielectric is discussed.