This study was aimed to analyze how human capital, work engagement, and work-life balance affect work productivity as mediated by work discipline. This study used a quantitative method on 178 respondents from PT Widodo Unggas employees. Data analysis using the SEM-PLS technique with a path analysis approach and the correlation test. According to the findings of this study, human capital and work-life balance have an impact on employee work discipline, while work engagement has no impact on work discipline. Productivity is affected by human capital, work engagement, and work-life balance. This research also confirmed that work discipline also has an impact on productivity.