Breast cancer patients should first choose an aerobic exercise that suits them and can persist for a long time. Aerobic exercise refers to moderate-intensity exercise that keeps the heart rate at 150 times per minute and lasts at least 150 minutes per week, about 5 times a week, with 30 minutes each time. Walking, jogging, brisk walking, race walking, skating, swimming, cycling, Tai Chi, fitness dance, aerobic dance, rope skipping, rhythmic gymnastics and ball games can all be used as exercise items. Elderly breast cancer patients over 65 years old should try to follow the above suggestions for training. If there are other chronic diseases that affect exercise ability, the exercise time and intensity should be adjusted appropriately according to the doctor's guidance, but long-term inactivity should be avoided.