Ovarian mucinous adenocarcinoma belongs to a kind of ovarian adenocarcinoma, which is a kind of epithelial malignant tumor of female reproductive organs. Ovarian adenocarcinoma is including plasma cystic adenocarcinoma and mucinous cystic adenocarcinoma. The causes are mostly related to heredity, hormone, gynecological diseases, smoking, obesity and so on. Mucinous cystadenocarcinoma has no obvious symptoms in the early stage, and in the later stage, frequent urination and vaginal bleeding will occur. Plasma cystic adenocarcinoma will have abdominal pain, fever, fatigue, abdominal mass in early stage, so it is easy to be found in early stage, and anemia may appear in late stage. Mucinous cystadenocarcinoma is already very serious when it is found in the late stage. Ovarian adenocarcinoma is sensitive to chemotherapy, so it can be treated by chemotherapy method. In early stage, surgery can be considered for radical treatment. In the middle stage, surgery can be the main treatment and chemotherapy can be auxiliary treatment. In the advanced stage, only surgery can be used for palliative treatment, and chemotherapy can be used after surgery. Patients whose symptoms are not suitable for chemotherapy can only choose symptomatic treatment.