Purpose/Significance To know the content of pregnant women's information needs and current situation of information support,and to provide a basis for the construction of pregnant women's information needs assessment tools and the improvement of infor-mation support system.Method/Process By searching domestic and foreign databases,the paper reviews the content of information de-mand,influencing factors,evaluation tools,information support status,etc.Result/Conclusion The information needs of pregnant women are abundant,but the existing information support content is limited and the form is single.It is urgent to build a scientific and ef-fective information needs assessment tool,and a diversified information support system.