This Journal discuss about Obligation Minimum and purposeful capital provision for analyze influencing factors _ level Islamic bank capital adequacy . Capital Adequacy Ratio (CAR) is used as variable dependent , temporary that inflation , GDP, rate ethnic group interest , total assets, total financing , total deposits , ROA, ROE, and NPF used as variable independent . Data obtained from report annual Islamic banking from the Financial Services Authority (OJK) and the Central Statistics Agency (BPS). Use method Vector Error Correction Model (VECM). Based on the results of statistical tests show that variables macroeconomics and performance finance Islamic banking in period long take effect to the CAR of Islamic banking .

Keywords : Macroeconomics , ROA , ROE, NPF, CAR