Triple-negative breast cancer recurrence metastasis to subclavian after surgery can be treated with surgery, chemotherapy treatment and so on according to the situation. Postoperative recurrent metastasis of triple-negative breast cancer is a worse case of the disease, and it can be treated with surgery again if only subclavian lymph node metastasis occurs and there is no distant metastasis. Because of the special characteristics of triple-negative, i.e. ER and PR are negative, and Her-2 is also negative. Therefore, endocrine therapy and targeted therapy cannot be carried out, and it can only be treated by chemotherapy. For the recurrence of triple-negative breast cancer metastasis, the chemotherapy regimen commonly used is the combination chemotherapy regimen of anthracycline combined with erythromycin, i.e., ECT regimen, with E standing for epirubicin, C standing for cyclophosphamide, and T standing for docetaxel. Patients with triple-negative breast cancer should be detected and treated as early as possible, and the drugs should be applied under the guidance of doctors.