Recently, the Department of Surgery performed coronary artery bypass grafting for an elderly female patient with coronary artery disease with severe three-branch lesions, and she has been discharged from the hospital. The patient, Xie Moying, 60 years old, came to our emergency department on December 10, 2013 with “chest tightness for more than 10 days, aggravated for 1 day” and was admitted to the general medicine department. The coronary angiography indicated “severe calcification and stenosis of the LAD opening and proximal end about 70%, complete occlusion of the proximal and middle segments, diffuse plaque of LCX, occlusion of the middle segment after OM1 emission, diffuse plaque of RCA, and limited stenosis of the middle and distal ends 90%.” Considering the severe three-branch lesion of coronary artery, it was not suitable for PCI, so we requested the consultation of the deputy director of the Department of Four Surgery, Xie Cuixian, and considered it as an indication for coronary artery bypass surgery, and transferred to the Department of Four Surgery. After sufficient conditioning and preoperative preparation, and the formulation of a thorough surgical plan and postoperative precautions, on December 24, Xie Cuixian, deputy director of the patient under general anesthesia extracorporeal circulation for coronary artery bypass surgery (3 bridges), coronary blood flow immediately improved, the procedure went smoothly, good postoperative recovery, January 17, 2014 recovery and discharge. The patient and his family were very satisfied and thanked the director and all the medical staff for their careful treatment and care. According to Deputy Director Cui-Xian Xie, the indications for coronary artery bypass surgery include: 1) stenosis of the left main stem of the coronary artery, 2) stenosis of more than 50% in two or more coronary arteries, 3) recurrent stenosis after coronary angioplasty or stenting, 4) formation of ventricular wall aneurysm after myocardial infarction, 5) patients who need other cardiac surgery at the same time, etc.