Diabetes is frequently associated with cardiovascular diseases (coronary heart disease, cerebrovascular disease, peripheral vascular disease), and several risk factors have been proposed. Recent studies have strengthened the importance of chronic hyperglycemia because this modifies a variety of circulating substances including lipoproteins, and the glycosylated ones can be involved in the process of accelerating atherosclerosis. In this review, previous studies indicating the significance of glycosylated lipoproteins in the progression of atherosclerosis were overviewed. We also discussed AGE (advanced glycation end products) which may play an important role of atherogenesis in diabetes.