At present, cobalt–molybdenum alloys are among the most functional galvanic coatings characterized by the following properties: magnetic, chemical resistance, catalytic activity, high wear resistance and corrosion resistance, including in aggressive environments. This paper is devoted to the study of the production of cobalt-molybdenum coatings from simple and complex electrolytes. The effect of ligands, such as trilon B and ammonium sulfate, on the alloy deposition process has been investigated in this paper. The kinetics of the process of electrodeposition of a coating from a polyligand ammonium–trilonate electrolyte on a copper electrode was studied using methods of linear voltammetry in a potentially dynamical regime with variation of the scanning speeds of a potential of 1–100 mV / s. The kinetic regularities of the restoration of cobalt ions in the following systems are studied: – cobalt sulfate; sulphate – cobalt – trilol B; – cobalt – ammonium sulfate and – cobalt – trilol B – ammonium sulfate with different concentrations. The nature of cathode peaks and the mechanism of electrode processes are determined by the analysis of volt-ampere characteristic dependences, and the Semerano criterion is calculated. Based on the Rendls–Shyevchik equation for the irreversible process, the coefficient of diffusion of the electrically active compound was determined and the rate constant of the charge transfer stage was calculated on the basis of J. Hohstein’s equation. Moreover, the product of the transfer coefficient for the number of electrons of the irreversible stage is calculated by the angular coefficient. The mechanism and kinetic equations of alloy deposition from a polyligand electrolyte in general and in separate stages are proposed. The electrochemical behavior of the – sodium molybdate system at various pH values in an acidic environment.