Zinc ultrafine powder has found applications in the medical, electronic, chemical, construction, and metallurgical industries. Existing methods of producing zinc powder have a number of drawbacks: some of them are highly energy-consuming, while others are characterized by low productivity and a coarse-grained structure of the powders. A solution to this problem can be found in the use of a gas discharge between an electrolytic anode and a metallic cathode immersed in an alkaline solution.The aim of this work was to study the combustion processes of a gas discharge between an electrolytic anode and a metallic cathode immersed in an aqueous solution of sodium hydroxide. The possibility of applying a gas discharge with a liquid electrolytic anode for the production of zinc powder from alkaline solutions has been established.The pulsed mode can be used at the voltages of the I-V characteristic curve only in the region where intensive hydrodynamic disturbances are observed and where a gradual increase occurs in the area of the metallic electrode surface covered by the gas discharge (U = 150–215 V for a 1% solution, U = 100–125 V for a 3% solution, and U = 70–110 V for a 5% aqueous solution of sodium hydroxide).