The values of dynamic viscosity of copper-nickel sulfate solution with boundary parameters Cu 2+ -50-60 g/dm 3 , Ni 2+ -20-25 g/dm 3 , H 2 SO 4 -140-180 g/dm 3 in the temperature range of 50-70° have been determined. A simplified equation for analyzing the viscosity of the solution depending on its composition and temperature is proposed. Technological graphs of solution viscosity simplifying its determination are given.