An aim of the present study is to examine the impact of inter-generational cooperation on the quality of life of elderly Alzheimer’s sufferers. The study is a continuing, two-year intervention report. The subject consist of an intervention and a control groups of six and five sufferers, respectively, who were diagnosed with Alzheimer’s disease. Both groups attend day care services. The intervention group participates in the inter-generational program with children, while the control group does not. In the results, the score of Quality of Life – Alzheimer’s disease (QOL-AD ) of the subjects has been significantly higher in the intervention group comparing with that of the control group. been significantly higher in the intervention group comparing with that of the control group. Also the Philadelphia Geriatric Center Affect Rating Scale(PGC-ARS), have been significantly higher in the intervention group those in the control group., The magnitude of the change was not so remarkable as to influence QOL-AD at home. The present intergenerational cooperation may improve the quality of life of moderate to severe Alzheimer’s sufferers.