Dementia is a common disease in the elderly with cognitive impairment as the main manifestation. The incidence rate is increasing year by year， which causes great economic burden to the society. Improving the ability of medical students to diagnose and treat dementia is an important basis for the prevention and treatment of this disease， and an important link in the professional education of neurology. This paper systematically reviews the necessity and feasibility of multidisciplinary integrated problem-based learning （PBL） mode in dementia diagnosis teaching so as to explore the object of education， teaching content and course setting of the multi-disciplinary integrated PBL， which is of great significance for improving the feasibility and practicality of medical education for clinical practice.