The new method of rising of corrosion resistance of the electrospark coatings is developed, consisting in that on a detail surface preliminarily superimpose corrosion-proof metal and subject its to chemicothermal treatment. Method singularity is that alloying carry out layer-by-layer with duration of pulses from 10 to 2500 microsecond, frequency of 1500-25 Hz accordingly. Then is carry out anodic chemicothermal treatment of the gained coat within 1-5 minutes in an electrolyte containing anorganic nitrogenous compounds with the component 0,5-15 g/l of tannin at voltage on electrodes 150-220 V, density of a current 1-20 А/sm2 and temperature of the anode 600-900 0С with the subsequent oxidizing in an electrolyte. After that a detail withstand within 0,5-10 hours in a solution concentrated orthophosphoric acid and/or a solution of a sodium nitrite concentration 30150 g/l. Then detail wash off, exsiccate and fill coat pores with the insulating material by electrolytic method. Effect of application of such method is raise of corrosion resistance of details, thanks to passivation of metal of an emulsion carrier in pores and formation in them of a stratum of nitrides and tannates that allows avoiding undercutting corrosion- and wear-resistant coat superimposed by electrospark alloying, and crumbling it. As seen from the table, the greatest positive effect is watched at combined treatment - alloying by alloy ВК8, chemicothermal treatment, passivating in orthophosphoric acid with the subsequent electrolytic filling of pores. In this case currents of anodic dissolution on comparing with a steel surface decrease in 120-280 times, in comparison with only alloyed surface - in 10,7-12,1 times, and in comparison with an alloyed surface both the subjected chemicothermal treatment and passivation in orthophosphoric acid - in 2,7-3,0 times. Table. Influence of type of handling on currents of anodic dissolution (mА) in an aqueous solution, г/л: 7.0 NaCl + 7.0 Na2SO4.table