The recovery time of open heart surgery needs to be determined by individual’s physique, in general, young people need 3~4 months, and the elderly generally need more than half a year’s recovery time due to slower recovery ability of the body. After open heart surgery, you should keep the wound clean, change the medicine regularly; do lung function exercise such as getting out of bed early under the doctor’s guidance to promote phlegm expulsion, prevent pneumonia and atelectasis, promote gastrointestinal peristalsis, and speed up the process of postoperative recovery, and get out of bed early to promote blood circulation, thus preventing thrombosis, and in turn, preventing the formation of pulmonary embolism. Diet should be more nutritionally balanced, light food, more green vegetables and fruits to ensure the supply of vitamins and fiber. Attention should also be paid to more rest, wearing a good chest strap as prescribed by the doctor, to avoid excessive thoracic activity, which may affect the wound healing. Patients also need to pay attention to regular review after discharge, if there is any discomfort, you need to consult a doctor and treatment in time.