The fact that organizational success depends on human resources rather than technology is a phenomenon from the past. The development of production tools in parallel with technology and needs has imposed important roles on people in production processes. It is seen that concepts such as perception of justice, moral conformity, judgments about ethical treatment, distribution of resources and employee performance, which affect the contributions of individuals and groups that shape industrial life to organizational work, have gained importance. Establishing and developing high quality relationships characterized by trust, consistency, role clarity, motivation and feedback can contribute to employees' job performance, sense of belonging and organizational citizenship behaviors. It is known that 10th International EMI Entrepreneurship & Social Sciences Congress, 10-13 September 2024, Targoviste / Romania 1199 fair and consistent behaviors that employees perceive in business life contribute significantly to their job performance. The research was conducted with 210 white-collar employees working in enterprises operating in different sectors affiliated to the holding organization, which is among the top 500 companies in Turkey. In this study, the effects of employees' perceptions of organizational justice on their job performance in the manufacturing sector were examined. According to the results of the analysis, it was found that employees' perceptions of organizational justice positively and significantly affect their job performance.