At present, the latest treatment for breast cancer is still a comprehensive diagnosis and treatment centered on surgery, and others include chemotherapy, endocrine, targeted and immunotherapy. Surgery: with the development of surgery, breast cancer surgery has become more and more mature, and the commonly used surgical methods include: radical mastectomy, modified radical mastectomy, total mastectomy, segmental mastectomy plus axillary lymph node dissection, sentinel lymph node biopsy, and post-mastectomy reconstruction. 2. Radiotherapy: it is an important part of comprehensive treatment for breast cancer, including adjuvant radiotherapy, post-breast-conserving radiotherapy and palliative radiotherapy. 3. Chemotherapy drugs: including preoperative chemotherapy, postoperative adjuvant chemotherapy, and advanced recurrent metastatic breast cancer. Chemotherapeutic drugs are still based on conventional anthracyclines and paclitaxel. 4. Endocrine drugs: by reducing estrogen in the body or inhibiting the growth of tumor cells. There are mainly: anti-estrogen drugs, luteinizing hormone releasing hormone, aromatase inhibitors, progesterone drugs. 4. Targeted therapy, in recent years, the development of targeted therapy drugs is rapid, the main drugs are as follows: trastuzumab, lapatinib, patuximab, TDM-1. 5. Immunological drugs are still mainly PD-1 inhibitors, but there are also new immunological drugs under development.