This study aimed to examine how interactions among job satisfaction, job competency and perceptions of the external employment environment affect voluntary job turnover of wage workers with disabilities. In particular, the concept of movement capital including human and social capital was utilized to measure job competency, considering unique conditions of the disabled. The study analyzed the data of 1,437 wage workers from the Panel Survey of Employment for the Disabled (PSED) between 2019 and 2021. The results showed that job satisfaction and movement capital such as family support and social relationship skills had significant associations with workers’turnover behavior. Wage workers who were dissatisfied with their current jobs and had high levels of movement capital were more likely to decide to change their jobs. This finding suggests that the ability to build and maintain supportive social relationships can be a key factor of movement capital for disabled wage workers. In addition, the findings propose that interventions focusing on quantitative expansion of jobs may not solve the problem of frequent job turnover among disabled wage workers. It seems to be necessary to take the approach that experience in the same job contributes to accumulating human capital, improving working conditions, and promoting upward mobility of workers.