Ovarian epithelial carcinoma is commonly referred to as ovarian cancer because it is the most common type of ovarian malignant tumor, accounting for more than 90% of ovarian malignant tumors. Ovarian malignant tumors are histologically classified according to their tissue origin and can be divided into epithelial tumors, germ cell malignant tumors, and sex cord mesenchymal cell tumors. Epithelial tumors are the most common tumors, which are tricky to treat clinically because the ovary is located in the deep part of pelvis, and there are no specific symptoms of early ovarian cancer, and this part of the patients often have ascites or abdominal masses, which is the late stage, so their prognosis is not too good. The incidence rate of ovarian cancer is the third highest among gynecological malignant tumors, but its mortality rate is the highest, which is related to its late detection and poor prognosis.