Description: The aim of the work is to substantiate the need to analyze the liquidity of the banking system and use its results to increase the effectiveness of decisions made by the financial management of the bank (regulation), as well as test the hypothesis about the dependence of the liquidity indicator on the factors considered, which plays an important role in regulation. What determines the following research objectives? 1. To consider the theoretical aspects of the bank liquidity management process; 2. Conduct the analytical part of the work to confirm that affect it. The object of work is the liquidity of the banking system, the subject in this case is the value of the liquidity indicator in the activities of banks, the dependence of liquidity on external and internal factors.