The 21st century is a society that seeks quality of life, and the interest in life satisfaction is increasing day by day for those who live in the 21st century. And the satisfaction of life is particularly noticeable in the field of lifelong education. The purpose of this study is to see how positive thinking and interpersonal skills of lifelong education participants affect life satisfaction. The results of this research are as follows.The study surveyed people who took part in lifelong learning at the Happiness Learning Center in Nam-gu, Busan. Data were analyzed using Pearson's correlation and multi-phase regression. The results of this research are as follows. First, a correlation analysis was conducted to determine the relationship between positive thinking and interpersonal skills and the satisfaction of life of lifelong education participants, showing significant static relationships between these variables.Second, after examining the relationship between the interpersonal skills of lifelong education participants and the satisfaction of life, it was found that there was a significant static correlation between them. The study found that both positive thinking and interpersonal skills are necessary to enhance the satisfaction of lifelong education participants, and a way to improve them is necessary.