Preventing recurrence of ovarian cancer can be treated by surgical treatment, chemotherapy and targeted therapy, etc. It is necessary to adopt appropriate methods under the guidance of doctors to prevent recurrence. 1. Surgery: the main purpose of surgery is to remove all primary foci and metastatic foci as much as possible, so as to minimize the residual tumor foci, prevent metastasis of primary ovarian cancer cells, and avoid recurrence of ovarian cancer, and the thoroughness of the initial surgery is closely related to the prognosis. 2. Chemotherapy: postoperative chemotherapy can also effectively prevent the recurrence of ovarian cancer. Adjuvant chemotherapy can be used to kill residual cancer foci and control the recurrence after the initial surgery to alleviate the symptoms, and the commonly used chemotherapeutic drugs include cisplatin, carboplatin, paclitaxel, cyclophosphamide and so on. 3. Targeted therapy: Targeted therapy, as an adjuvant therapy, can also prevent ovarian cancer from recurrence to a certain extent, and bevacizumab, a vascular endothelial growth factor (VEGF) inhibitor, is usually used as a combination of initial chemotherapy and maintenance therapy. Ovarian cancer patients should pay attention in their normal life, actively accept standardized treatment by doctors to improve the prognosis and follow the doctor’s prescription.