Coronary artery disease (CAD) is one of the most common diseases in China. Cardiac magnetic resonance imaging (CMR) is gradually becoming one of the effective tools for non-invasive detection of CAD because it can provide comprehensive information. This paper reviews progresses of the diagnosis of CAD and evaluation of the prognosis by CMR, including evaluation of the ventricular wall active reserve function by the large dose dobutamine stress test, evaluation of the myocardial blood flow perfusion by the myocardial first-pass perfusion imaging, and diagnosis and evaluation of myocardial infarction and chronic heart failure by the delayed enhancement scar imaging and T2-weighed CMR imaging.