Ovarian malignant tumors can usually be clinically cured if they are in the early stages. However, if it is in middle or late stage, it is difficult to be cured completely. 1. Early stage of ovarian malignant tumor: at this time, the cancer cells have not metastasized and are only confined to the ovary. The ovary with malignant tumor can be removed through radical surgery, and the surrounding lymph nodes can be cleared, with regular review after surgery. At this time, the probability of recurrence and metastasis is small, and clinical cure can be realized. 2. Middle and late stage of ovarian malignant tumor: at this time, the cancer cells have infiltrated a large range, or have metastasized to other organs or lymph nodes outside the ovary, and the chance of radical surgery has been lost, so it is difficult to achieve a cure. However, comprehensive treatment combining chemotherapy, radiotherapy, targeted therapy and other anti-cancer methods can prolong patients’ life, improve their quality of life and realize long-term survival with tumor. Regular physical examination is recommended for early detection and timely treatment of malignant tumors. The prognosis of ovarian malignant tumors should be judged under the guidance of doctors and according to the specific conditions of patients.