Functional exercises are different for each time period after breast cancer surgery, and can be roughly categorized into the bed-ridden period, the period of getting out of bed, and the functional exercises after discharge from the hospital. Roughly, it starts with hand activities, slowly moves to shoulder, and finally transitions to whole body exercises. In the bedridden period after breast cancer surgery, patients can first carry out functional exercises for fingers, wrist and elbow joints, which is helpful for patients to reduce the symptoms of axillary fluid accumulation or upper limb edema on the affected side. In the two weeks after surgery, patients can do more exercise for shoulder joint and upper arm muscles, which can increase the blood circulation of the upper limbs and promote the functional recovery of deltoid and trapezius muscles and other parts of the body. If there is no adverse reaction after the patient is discharged from the hospital, the patient can increase the amount of exercise according to the above exercise, increase the wall-climbing exercise, coordinate the upper limbs, and restore the ability of self-care. While patients actively carry out functional exercises after surgery, they should also regularly go to the hospital for review, follow the doctor’s instructions, and standardize the treatment recovery.