Stage I ovarian cancer patients have a five-year survival rate ranging from 80% to 90% after active standardized treatment, which is related to the specific conditions of patients. Ovarian cancer is a common malignant tumor of female reproductive system, mostly caused by heredity, hormone level, etc. Stage I is one of the clinical stages, which represents that the tumor is confined to unilateral or bilateral ovaries, without lymph node metastasis or distant metastasis. In this period, radical surgical resection is usually feasible, after which chemotherapy and other adjuvant treatments will be performed according to the condition. After active treatment, patients have a good prognosis and can obtain a five-year survival rate of about 80% to 90%. And the clinic often does not use the specific life expectancy as a prognostic indicator.