Open surgery for ovarian cancer is staged surgery for early stage ovarian cancer, including resection of tumor and clear staging. In principle, total hysterectomy and double adnexa resection, salpingo-oophorectomy, and pelvic and abdominal aorta lymph node removal should be performed. For advanced ovarian cancer, tumor cytoreductive surgery is performed to remove the primary tumor and all the metastatic foci as much as possible, so as to reduce the number of tumor cells to the minimum. For young people with fertility requirements, conservative surgery is feasible to preserve fertility function if eligible. In general, open surgery for ovarian cancer, first of all, it is necessary to disinfect the operation area, spread the towel, then cut the skin and subcutaneous tissue layer by layer, separate the rectus abdominis muscle, open the peritoneum and enter into the abdominal cavity, at this time, it is necessary to use intestinal pads to drain intestinal tubes, and sometimes it is necessary to assist the assistant in pulling the hook to observe the size and nature of the ovarian mass in relation to the surrounding tissues and organs. Then, according to the patient’s specific condition, the uterus, fallopian tubes and ovaries will be selectively resected, and some patients even need to have their pelvic lymph nodes cleared, and then they will need to be stitched up layer by layer, and if there is a high risk of recurrence, they may need postoperative radiotherapy, chemotherapy, targeted therapy, etc. The specific operation will vary from patient to patient. Specific surgery varies from person to person, and patients are advised to go to regular hospitals to receive standardized treatment.