The order of chemotherapy and surgery for breast cancer patients is as follows: 1. Early stage patients with surgical conditions are usually treated with surgery first; 2. Early stage patients with relatively large tumors and breast-conserving desires can be treated with neoadjuvant chemotherapy first, and then breast-conserving treatment after the mass has shrunk and the disease has descended; 3. Patients with locally advanced stages do not meet the surgical indications, and it is appropriate to treat them with chemotherapy first followed by surgery; 4. Patients with the first diagnosis of stage IV are mainly treated with systemic therapy, and interventional surgical methods can be considered when the situation allows.