After chemotherapy for breast cancer, the main focus is on dietary supplementation, paying attention to the intake of basic nutrients, including protein, vitamins, and calories. In the diet, soy milk, milk, lean meat, fish and shrimp, and soy products are the sources of protein. Fresh vegetables are a source of vitamins and are usually recommended to be taken in conjunction with the diet. The third generation of debrided ganoderma lucidum spore powder can strengthen the immune system, help the wound recover as soon as possible and avoid postoperative infections. It is also important to pay attention to the disinfection of living environment and utensils to minimize the risk of viral infection. Breast cancer is a consumptive disease, so it is very important to increase protein, increase nutrition and improve the immunity of the body.