Whether breast cancer ki-67 reaches 30% can be cured or not should also consider the tumor stage and other clinicopathological indexes. Breast cancer ki-67 (+,30%) means that breast cancer ki-67 is positive and the positive rate reaches 30%, which usually requires surgery, postoperative adjuvant radiotherapy, chemotherapy, etc. The lower the normal value of ki-67 is, the better the prognosis will be. The lower the normal value of ki67 of breast cancer, within 0~30%, the better the prognosis and the higher the cure rate. If the index of ki67 is high, it means that the degree of malignancy of the tumor is high and the risk of metastasis and recurrence will be increased, and if the value of ki67 is 30%, it means that the proliferation of breast cancer is relatively slow, so it is possible to choose the surgical treatment, and the postoperative adjuvant radiotherapy, chemotherapy and so on. Surgical treatments include radical mastectomy, which removes the breast, pectoralis major muscle and axillary lymph nodes; modified mastectomy, which removes the breast, preserves the pectoralis major muscle and pectoralis minor muscle, and removes the axillary lymph nodes; and breast conserving mastectomy, which removes the localized mass and surrounding tissues, and removes the axillary lymph nodes together. After the operation, according to the different conditions and operation styles, radiotherapy and chemotherapy are chosen, and doxorubicin and cyclophosphamide are usually used. Whether breast cancer ki-67 reaches 30% can be cured or not is still mainly based on the tumor size, staging, location, whether metastasis and clinicopathological indexes, and the specifics should consult the doctor for treatment. The above drugs need to be used under the guidance of physicians.