The current paper highlights theBaselI, Basel II & Basel III requirements on capital adequacy and liquidity of commercial banks. In the paper, Basel II structure, methods of loan risk assessment, coefficients of loan risk assessment, credit risk measurement for counterparty banks are discussed. Moreover, assessments of Basel III on bank chances against crisis driven from financial and economic crunches, risk management, performance quality and bank transparency improvement measures are presented. At the end, the author gives his conclusions on the essence and necessity of new regulatory standards of the Basel Committee on bank’s supervision in the structure of the supervision of credit institutions.