Global depression has brought the Korean economy into the period of low growth. The notion of lifetime employment has long crumbled, while economic recession is gradually taking away quality jobs. Furthermore, the average lifespan for the population has neared 100, while baby-boomer retirement is swinging into high gear. The simultaneous inrush of social and economic problems is threatening our wellbeing. However, there has been insufficient amount of research conducted on the factors that influence the satisfaction with lectures in lifelong education designed to address the problems. If we look at the earlier studies, most of them are on the satisfaction with lectures in regular courses. Our society demands that jobs be created for retirees including the baby boomers and that quality jobs be provided for those who want to go back to work after they have withdrawn from previous employment. In this light, the current study aims to bring light on the causal relation between the influential factors and variables involved in the satisfaction of lectures of non-degree programs with a view to solving those problems, and suggests the need to draw up marketing strategy that uses it. Specifically, the purpose and method of this study are as follows. First, to develop variables to be used in this study through in-depth interviews with field staff in the industry and training staff. Second, to identify predisposing factors that influence the satisfaction with the lectures of non-degree programs. Third, to identify the variables mediating predisposing factors and satisfaction with lectures. Fourth, to propose marketing strategy for non-degree programs using the results of the study. As identified through this study, the influencing factors for satisfaction with lectures are physical environment, composition of contents, and instructor ability and attitude, while mediating variables are interaction and immersion in lectures. If these factors are reflected in education, a higher level of satisfaction with lectures will be ensured for business starting youths, retirees, and those who want to have some other job after withdrawing from their previous ones. Educational institutions will be able to use it in ensuring stabler recruiting of trainees and establish a more efficient guidance and marketing strategy. Reflecting the results of the study in education will contribute to heightening educational sustainability, social sustainability, and economic sustainability.