Epicardial adipose tissue is the adipose tissue that deposits on the heart especially the adipose tissue surrounding coronary arteries.Epicardial adipose tissue can synthesize lots of adipokines which act on adjacent coronary artery or heart through paracrine and vasocrine,thus influences occurrence and development of coronary heart disease.So studying epicardial adipose tissue and adipokines secreted by itself thoroughly would provide a new concerned target for prevention and treatment of coronary heart disease.