The percentage of individuals with dementia worldwide is increasing with the continued trend toward global trend overall. As options for the medical treatment of dementia remain limited, combined, non-pharmacological interventions are necessary to maintain and slow the degeneration of functional capabilities. Additionally, there is a need to help caregivers develop better patterns of care and methods to reduce the burden of care. Therefore, occupational therapists play an important role in the dementia care team. This article introduces how occupational therapists help dementia patient maintain their functional capabilities and delay degeneration and help caregivers reduce their burden of care. Both activities are based on the concept of occupational therapy, which includes three important components: people, activities, and the environment.