随着乳腺癌发病率的不断增高，肿瘤与机体免疫功能的关系日益引起关注。文章综述了乳腺癌与T淋巴细胞亚群的关系，以探讨乳腺癌患者手术前后免疫功能的变化，从而为患者选择适当的手术方式和放化疗、免疫治疗。“,”With the increasing incidence of breast cancer, the relationship between tumor and immune function has attracted more and more attention. This article reviews the relationship between breast cancer and T lymphocyte subsets, in order to explore the changes of immune function before and after operation in breast cancer patients, so as to select appropriate surgical methods, radiotherapy, chemotherapy and immunotherapy for the patients.