Objectives To evaluate the screening effect of Ipad-based cognitive assessment and training software（ with screening and training functions） for elderly patients with mild cognitive impairment. Methods In this study， we selected the elderly individuals who underwent physical examination in Xiaotangshan Hospital of Beijing as the research subjects， and used Ipad cognitive assessment and training software and Beijing version of Montreal Cognitive Assessment（ MoCA） to conduct screening and evaluation. Results The detection rate of cognitive impairment in the elderly was 23.53% using MoCA based on the different educational years and different thresholds of MOCA score in the Beijing version. The detection rate of mild cognitive impairment in the elderly was 24.85% using Ipad cognitive assessment and training software. There was no statistical difference between the two methods（ P ＞ 0.05）. The results of the two methods were consistent（ Kappa=0.755，P ＜ 0.001）. Conclusions Ipad cognitive assessment and training software can be used for the preliminary screening of cognitive impairment in the elderly population.