Abstract: This study investigates the empirical effect of school organizational justice (SOJ) and organizational citizenship behavior (OCB) on teachers’ performance and proves the theoretical model regarding OCB as a mediator between SOJ and teachers’ performance. A questionnaire collected research data. The questionnaire for all research variables is reliable with an alpha coefficient > .7. The research participant is 455 teachers of the public elementary schools in Indonesia select by accidental sampling. Data analysis uses path analysis supported by descriptive statistics and correlational matrics. The research result reveals that SOJ and OCB significantly affect teachers’ performance. SOJ is also significantly influenced teachers’ performance. Besides, OCB was significantly indirectly mediating the effect of SOJ on teachers’ performance. The empirical model of SOJ on performance mediating by OCB was confirmed. This model can discuss among researchers and educational practitioners to build models of performance that can adapt as new approaches or strategies to enhancing teachers’ performance. Therefore, the research suggested that the teachers’ performance can improve through SOJ and OCB.