Аннотация:Review of the current state of the theory describing the effect of surface-active organic substances on electrochemical reaction kinetics. The following problems are discussed: the effect of surface blocking by adsorbed organic molecules; the potential distribution in the electric double layer during the adsorption of organic substances, and the influence of this effect on the rate of the discharge step; the influence of surface-layer structure on electrochemical reaction kinetics in the presence of organic additives; the mechanism of electrochemical reactions at high surface coverages of the electrode by adsorbate molecules; and the importancof solution composition under conditions where electrochemical reactions are inhibited by surface-active additives.