This study aims to determine the effect of job insecurity on organizational commitment partially, the influence of organizational commitment on turnover intention partially, the influence of job insecurity on turnover intention partially, how much influence directly job insecurity on turnover intention with the indirect effect of job insecurity on turnover intention through organizational commitment. This research was conducted at the Sleman Regency National Land Agency Office. The number of samples from this study were 60 non-permanent employees of the Sleman Regency National Land Agency Office. Data analysis using SPSS version 22. The results of this study indicate that job insecurity partially affects organizational commitment. Organizational commitment partially affects turnover intention. Job security affects turnover intention. The direct effect of job insecurity on turnover intention is greater than the indirect effect of job insecurity on turnover intention through organizational commitment.