The treatment plan for breast cancer metastasis is not fixed, and is closely related to the location and quantity of metastasis. If the patient's breast cancer has axillary metastasis, the first step is to carry out radical surgery as far as possible. After surgery, it may be necessary to carry out adjuvant radiotherapy and chemotherapy, targeted or endocrine therapy and other comprehensive treatments according to the results of immunohistochemistry and pathology to improve the treatment effect. If the breast cancer of the patient metastasizes to the liver and a single mass with a smaller diameter appears, the first stage operation can be carried out, and surgical treatment should be carried out as far as possible. After the operation, adjuvant chemotherapy and radiotherapy or other comprehensive treatment should also be carried out.