The postoperative conditioning of breast cancer includes the following aspects: 1. dietary conditioning: patients are advised to have a light and diversified diet to ensure nutritional intake, with high protein, high fiber and high energy diet as the mainstay, so as to rapidly improve the nutritional status of patients and enhance the immune function; 2. some patients are limited to lift the operated limbs due to scar pulling or nerve damage after surgery, so they can perform wall climbing exercises to restore the operated limbs to normal functional status as soon as possible; 3. maintain a good state of mind, return to society as soon as possible, and establish self-confidence to conquer patients.