The purpose of this study is to derive various implications for promoting successful aging by examining the mediated effects of social support and learning flow in the process of influencing successful aging by the positive psychology capital of older adult learners. The subjects were those aged 65 or older who had continued to participate in lifelong education programs. Finally, 289 cases were analyzed. The relationship between each variables was examined using the structural equation model, and the path coefficients in order to determine direct effects and indirect effects were investigated. The results showed that positive psychology capital directly affected successful aging. And positive psychological capital positively affected successful aging through social support and learning flow. This study provides suggestions for promoting the study immersion of older adult learners in time for the lifelong learning era and promoting successful aging through lifelong learning. And this study is significant in that the data can provide implications for the improvement of positive psychological capital in order to promote successful aging of elder adults.