Abstract:Ovarian cancer is one of the malignant tumors that threaten women`s life seriously. With the decreased age of patients with ovarian malignant tumor and the increased age of pregnancy, the incidence of ovarian malignant tumors complicated with pregnancy gradually increases. However, there has been a lack of standardized diagnosis and treatment standards for pregnant with ovarian malignant tumor at present. At present, further progress has been made in the research on the occurrence, development, diagnosis and treatment of pregnancy with ovarian malignant tumor. This paper presents a comprehensive description of the research progress of pregnancy complicated with ovarian malignant tumor, and intends to provide guidance in clinical practice.