Objectives: This study aimed to identify the methods used to determine the value of informal care provided to people living with dementia and to estimate the average hourly unit cost by valuation method. Methods: A literature search in MEDLINE Complete, CINAHL, PsycINFO, EconLit, EMBASE and NHS Economic Evaluation Database was undertaken. Following the screening of title, abstract, and full text, characteristics of eligible studies were extracted systematically and analyzed descriptively.