Patients with diabetes and coronary artery disease are frequently considered for myocardial revascularization procedures, aiming at cardiovascular events risk reduction and a better quality of life. In clinical practice, decisions concerning surgery or percutaneous coronary intervention are frequently difficult, because of cases' severity, disease extension and co-morbidities association. Beyond that, the bulk of literature information was generated by subgroup analysis of randomized clinical trials, which were designed for the general population, not for diabetics. The aim of this study was to review literature on coronary percutaneous intervention in diabetic patients, and also to show recent data from the experience in this procedure at the Catheterization Laboratory of the Cardiology Institute of RS.