Rotator cuff surgery, also known as rotator cuff injury surgery, is generally not recommended for playing badminton after surgery to avoid re-injury. The purpose of rotator cuff injury surgery is to repair the torn rotator cuff, remove the unstable tear margin, and remove impingement factors. During postoperative rehabilitation, all activities must be carried out within the pain tolerance range, avoiding excessive twisting or over-exercise. Therefore, playing badminton is not recommended, and patients can choose physical exercises suitable for their own characteristics, such as health exercises, tai chi sword or tai chi chuan. Rehabilitation training after rotator cuff injury surgery is crucial and can affect the surgical effect. After rotator cuff injury surgery, patients should make a training program under the doctor’s guidance according to the degree of injury, the firmness of the repair, age and other factors, in order to reduce the pain and promote the function of the shoulder joint to return to the normal level, and at the same time, avoid the repaired tissues rupture again. Therefore, after rotator cuff injury surgery, suitable rehabilitation exercises should be chosen under the guidance of professional doctors and therapists.