It usually takes more than three months to return to normal after cardiac bypass surgery, and the specific recovery time still needs to be decided according to the patient’s physical condition, as well as the post-operative care situation. Cardiac bypass surgery is the most commonly used surgical method for the clinical treatment of coronary artery atherosclerotic heart disease in cardiac surgery, most of the patients have good results after surgery, about two weeks of rest in the hospital can be discharged, and may need to continue to rest after discharge, regular checkups, the general return to normal may take about three months, the specific time varies from person to person. Patients after heart bypass surgery should try not to engage in physical activities in the short term, but can exercise appropriately, pay more attention to rest, avoid exertion, do not stay up all night, and maintain good sleep habits. Eat more light and easy-to-digest food, and strictly control the diet of low oil, low fat and low sugar. Patients who have just had heart bypass surgery must follow the doctor’s instructions to review on time and treat according to the doctor’s instructions to avoid adverse consequences.