隨著人口的老化，失智者的比例也跟著增加。失智者目前在醫學上的藥物治療效果有限，需要搭配非藥物治療的介入，以維持或延緩功能的退化，也需要協助照顧者發展更好的照顧模式與方法，以減輕照顧負荷，職能治療師即是失智症照護團隊中非常重要的角色。本篇從職能治療的概念出發，以三個大方向架構（人、活動、環境），介紹職能治療師到家裡，是如何協助失智者及其照顧者，維持及延緩功能退化，以及減少照顧負荷。

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.