The indications for ovarian cancer surgery are as follows: 1. early stage: once ovarian cancer is detected, the patient’s physical condition allows and there is no contraindication to surgery, surgery should be taken immediately; 2. middle and late stage: there is a large amount of ascites and adhesions in the abdominal cavity, and even invasion of other organs, the tumor should be removed as much as possible in conjunction with other departments, such as urology, to avoid hurting the surrounding organs; 3. postoperative recurrence and metastasis: within six months after surgery the patient Recurrence, usually for drug-resistant type. These patients have poor prognosis and are usually given second-line regimens or even apply new drugs for treatment.