Aging in the twenty-first century presents a multifaceted global challenge, demanding subtle understanding for effective solutions. Shifting from merely extending life expectancy, active aging seeks to enrich the quality of later life, aiming to boost the well-being and life satisfaction of older individuals. As demographic and familial structures evolve, the involvement of non-governmental organizations (NGOs) in aging affairs emerges as a pivotal force within civil society. These NGOs, operating across diverse countries and regions, undertake a spectrum of activities. Such activities bring considerable benefits to both physical and mental health of older individuals. Through a meticulous review of 31 studies from Web of Science (WOS) and Scopus databases, this study delves into the multifaceted roles of NGOs in promoting active aging. It uncovers three primary contributions: care services, lifelong learning, and volunteer engagement. Furthermore, this research critically examines the status and challenges faced by NGOs in advancing active aging principles, probing their impact on the life satisfaction of older adults. By elucidating these insights, this study offers collaborative pathways for future social policy enhancements in aging.