Triple negative breast cancer T2N0M0 is not an early stage, it is a progressive breast cancer. Triple-negative breast cancer refers to breast cancer that is negative for estrogen receptor, progesterone receptor, and epidermal growth factor receptor 2 by immunohistochemistry, and belongs to a special type of breast cancer. It usually occurs in young and middle-aged women, and is prone to recurrence and metastasis. After diagnosis, timely measures should be taken to avoid metastasis of cancer cells. Surgery, radiotherapy and chemotherapy are the main treatment modes, and endocrine therapy and targeted therapy cannot be adopted. However, after timely surgical treatment and postoperative adjuvant chemotherapy, the survival rate can be improved. Patients should actively cooperate with doctors to improve relevant examination and take corresponding measures for treatment so as not to delay the condition.