After 6 times of chemotherapy for ovarian cancer patients, a comprehensive review should be conducted to assess the efficacy and guide the next treatment plan according to the examination results. After 6 times of chemotherapy, ovarian cancer patients usually have to undergo comprehensive review, including blood routine, liver and kidney function, tumor markers, pelvic CT or magnetic resonance, thoracic and abdominal CT, etc., to assess the efficacy, clarify the tumor condition, whether to treat the tumor surgically or to continue the maintenance treatment, etc., such as to continue the chemotherapy, radiotherapy, immunotherapy or anti-angiogenic drug therapy. Maintenance therapy for ovarian cancer refers to the treatment method that continues after the completion of the established course of chemotherapy and after the tumor has been relieved to the greatest extent, so that the patient can get the greatest benefit, such as chemotherapy, immunotherapy and so on. Comprehensive review should be conducted after the completion of 6 rounds of chemotherapy for ovarian cancer, and the competent doctor should be consulted to choose the next step of treatment according to the specific conditions of the patient.