The relationship between employees’ green behaviors, self-efficacy and work happiness was explored from the perspective of individual employees based on resource conservation theory and self-determination theory. The hypotheses were verified through correlation analysis and regression analysis, etc. on the 196 data collected. The results of empirical analyses show that there is a positive influence relationship between employees’ green behaviors and job happiness. Self-efficacy mediates the relationship between employees’ green behaviors and job happiness, as well as the moderating role of interactional equity in the mechanism. The results enrich the research on the aftereffective variables of employee green behaviors, broaden the research on the mechanism of employee green behaviors affecting employees’ work well-being, and also provide useful insights for corporate practices.