Abstract:Autophagy achieves a steady evolutionary process of eukaryotic cell homeostasis and continuous renewal by degrading damaged proteins or organelles in lysosomes or vacuoles. In recent years, studies have found that autophagy is closely related to immune response and plays an important role in the development of breast cancer cells. This article reviews the complexes involved in the regulation of autophagy, the relationship between autophagy and immune system, the role of autophagy in tumors, and the application of autophagy in breast cancer immunotherapy, aimed to improve the prognosis of patients and provide reference for autophagy, immunotherapy of breast cancer and the correlation between clinical benefits and research