The objective of this study was to determine the effect of the determinants of capital adequacy on the return on equity as an indicator of the performance of Syrian commercial banks and to develop a standard model based on the financial analysis of published financial statements of Syrian banks. Credit risk, capital risk, interest rate risk, and IRP for all listed commercial banks listed on the Damascus Securities Exchange (DSE) over a period of time extending from 2011 to 2015, and making recommendations that help the banks to develop their banking performance.