Cervical cancer stage 3C1b has a relatively low possibility of cure. Because this stage indicates that the tumor has already involved the lower 1/3 of the vagina, extended to the pelvis and involved pelvic lymph nodes, the treatment is mainly radiotherapy, systemic chemotherapy, targeted therapy or immunotherapy. Since there are lymphatic metastases, the prognosis is relatively poor. Stage 3C1b cervical cancer belongs to more advanced cervical cancer, the cancer cells have already metastasized to lymph nodes, and the possibility of cure is relatively low. The purpose of treatment is to control the proliferation of the cancer cells, improve the local control power and improve the clinical symptoms. 1. Radiotherapy is preferred, and the reasonable combination of external irradiation and intracavitary radiotherapy can improve the local control rate by making the dose distribution in the lesion area more in line with the biological characteristics of the tumor. 2. Systemic therapy includes systemic chemotherapy, targeted therapy and immunotherapy. Targeted drugs are mainly bevacizumab, which is often used in combination with chemotherapy. Chemotherapeutic drugs have greater side effects and should be used under the guidance of a doctor. The prognosis of patients is based on the type of pathology, physical condition, and body immunity comprehensive judgment, therefore, in addition to active treatment, you also need to ensure emotional stability, enhance nutrition, and improve the body immunity, in order to enhance the duration of survival.