[en] We studied the currents mode of the Azov Sea on the basis of instrumental measurements of R/V Deneb in 2018 and 2019. Using ADCP current meters, water exchange between the Azov Sea and the Black Sea through Kerch Strait was estimated. The very strong dependence of the current velocities on the wind speed and direction was shown. With moderate northerly winds, the advection of water to the south to the Black Sea can be 5–6 times more than to the north to the Azov Sea. With southern winds the entire studied cross section could be filled with water of the northern component with a velocity and volume up to 30 times higher than the average discharge of the Don River, which is typical of the present low-water period. On the basis of instrumental measurements, the drift nature of the currents in the Azov Sea was confirmed and flows of saline Black Sea waters were recorded. Based on the results of field observations of the Southern Science Center, Russian Academy of Sciences, a classification of water stratification in Taganrog Bay was constructed, four stratification types were defined, and the restructuring of types of stratification in connection with the salinization of the sea was noted.