This paper reviewed the relationship between perceived organizational justice(distributive justice, procedural justice, interactional justice) and job stress, and the moderating effect of trust(organizational trust and superior trust). Based on the responses from 176 employees, the results of multiple regression analysis appeared as follow; 1) Distributive justice and interactional justice effect negatively on job stress, but procedural justice does not effect on job stress. 2) While organizational trust and superior trust are stronger, interactional justice effect less negatively on job stress. When interactional justice is higher, job stress is lower in high trust level than in low trust level.