Conditions of intensification of the extraction of substances with antioxidant properties from the leaves of bearberry (Arctostaphylos Adans) have been studied. It is established that the nature antioxidants are most completely extracted by maceration in a constant electric field (U = 35 V,I = 250 mA) for 2 h at 303 K with stirring. The optimum extractant is 1% aqueous solution of acetic acid with additives of surfactant (Twin-80, 8.8 × 10-4 M). This extract increases the stability (storage time) of sunflower oil more then four times. The proposed method of electroextraction increases the yield of extracted substances with antioxidant properties at a reduced yield of ballast substances without complicating the procedure and increasing the consumption of materials.