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Breast cancer is the most common malignant tumor in women and the main cancer causing death in females. Breast cancer therefore seriously threatens women's health and life span. Although there are a variety of comprehensive and multidisciplinary treatments for different types of breast cancer, the overall prognosis of advanced breast cancer remains unsatisfactory. The incidence of breast cancer is increasing year by year, and the age of onset is gradually decreasing, making the discovery of a breakthrough in breast cancer treatment a major problem that needs to be solved urgently. A large number of studies have shown the growth of breast cancer cells can be inhibited by inducing ferroptosis. Acid sphingomyelinase has also been confirmed to be involved in cell death induced by ferroptotic agonists. This article reviews the progress in the use of acid sphingomyelinase and ferroptosis in the treatment of breast cancer, and summarizes the mechanism of ferroptosis in breast cancer cells and its correlation with acid sphingomyelinase. This review will provide a theoretical foundation for seeking new therapeutic targets for breast cancer. [ABSTRACT FROM AUTHOR]