By using the data of 26 Vietnamese Join-stock Commercial banks, the paper researches the factors that impacted on Capital Adequacy Ratio of Vietnamese commercial banks. Through the Panel Tobit model, the research found out that the Net interest margin (NIM), Bank size, GDP Growth, Interest rate and Exchange rate have the inverse relationship with CAR while the Leverage and Deposits positively correlated to CAR. On this basis, the study gives some recommendations in order to improve the capital adequacy ratio for commercial banks in the future. | Determinants of capital adequacy ratio of Vietnamese commercial banks