Bypass for 65 year olds can cure occluded coronary lesions, but the surgery is traumatic and not conducive to recovery. Cardiac bypass can effectively improve the lack of heart vitality, resulting in insufficient blood supply, and at the same time can cure coronary artery lesions and prolong the patient’s life. However, cardiac bypass surgery often results in greater surgical trauma to the patient and a relatively longer hospital stay. 65 year old patients are slower to recover and may experience prolonged recovery and complications after the surgery. Elderly people are more prone to wound infections and pleural effusion after heart bypass surgery. Patients should take good care of themselves after the surgery and use relevant medications such as antiplatelet drugs and statins under the guidance of the doctor. Elderly people who undergo heart bypass surgery should choose regular hospitals for the surgery.