Aging is a natural and virtually inevitable process, and as a chronological marker is of central importance in society. Now, the world is facing a situation without precedent; it is on the brink of a demographic milestone “Older people are a rapidly growing proportion of the world's population". People are living longer, but that does not necessarily mean that they are living a good quality of life. As the population ages, guardianship is the most profound course of action when determining that an older adult lacks decisional capacity. So, this study is aimed at improving the quality of life for older adults in guardianship through a clinical spiritual program. Effectiveness of the professional intervention program in improving quality of life indicators; the general percentage of change was 34.83%, and 38.18%, 36.36%, 31.27% in “general health", “psychological health" and “Social life" indicators respectively. comprehensive and deep clinical assessment of guardianship cases; written clinical evidence guidelines about guardianship; program about guardianship cases management; future studies about how a person adjusts to old age is largely a product of quality of life; developing scales to measure the rights of older adults in guardianship; integrating the professional practice of clinical social work with older adults in guardianship into legal contexts, and adopting a new perspective in clinical social work based on 'critical gerontology', a value committed approach that seeks not only to understand social ageing but also to change it for the better.