Aim To discuss the characteristics and experience of coronary artery bypass grafting (CABG) in the elderly patients above seventy years old with coronary heart disease (CHD). Methods There were 62 cases of patients with CHD over 70 years old. The operative techniques and postoperative management of CABG were analyzed retrospectively. Results Three cases were postoperatively died and the mortality rate is 5%. The postoperative main complications were cardiac arrhythmias, low cardiac output syndrome and pulmonary infection. Conclusion CABG for patients over 70 years old could alleviate the symptom,relieve anginapectoris and improve life quality. The mortality rate of these patients is not higher than that of other patients. Special attention should be paid to the management of preoperative complications such as diabetes mellitus, hypertension and the management of postoperative cardiac and respiratory function.