The purpose of this article is to review the research progress on fear of dementia， and to provide references for clinical treatment and nursing care. Fear of dementia is a widespread problem for adults， and adults with high degrees of fear were more likely to develop adverse psychological consequences， including aggravation of anxiety and depression， decreased inclination toward health-promoting behaviours， avoidance of medical treatment， and suicidal ideation. At present， domestic and foreign studies have mainly focused on the current situation and influencing factors of fear of dementia. Therefore， this article gives a review on the fear of dementia in terms of its concept， incidence， impact， influencing factors， assessment tools and intervention measures， with a view to provide a reference for the subsequent studies.