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 information support system. Method/Process By searching domestic and foreign databases, the paper reviews the content of information demand, 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 effective information needs assessment tool, and a diversified information support system.