Systemic metastasis of breast cancer is not easy to be treated, which belongs to the state when the tumor enters into the advanced stage, the development speed of the tumor is relatively fast, the physical condition of the patient gradually declines, and the overall treatment effect is relatively poor. Systemic metastasis of breast cancer belongs to the state that the breast cancer is not controlled in time or the tumor itself has a high degree of malignancy and has progressed to the advanced stage, and it is basically difficult to be treated after it has entered the corresponding stage, which is mainly due to the fact that the metastatic sites are more numerous and larger in scope, which can’t be dealt with by surgery, and the patient’s physical condition has declined and it is difficult to tolerate all kinds of treatments. It is difficult to treat multiple metastases of breast cancer, only symptomatic treatment for specific conditions can maintain the survival quality of patients with the greatest possibility, which needs to be standardized under the guidance of clinicians.