A humility executives’ person who has been career success. The present study examines the relationship between humility and career success of life insurance sales agents and the mediating roles of perceived mentoring support from supervisors. The sample of life insurance agents was drawn from of a major life insurance company, which occupies the largest life insurance market share in Thailand. The data was analyzed by the structural equation modeling (SEM) and collected from 395 life insurance sales agents. Survey questionnaire survey were used to collect the data. The results found that humility had direct positive effects on perceived career success of the life insurance sales agents. In addition, these effect was partially mediated by perceived mentoring support from supervisors. These results suggest that it is important for organizations to focus on the selection of individuals who are a good fit to their jobs and also to emphasize the development of leadership and supervisory competencies in promoting career success among their followers.