This study analyses the structural relationship among adolescents s subjective social status, perception of meritocracy, perception of discrimination against the socially disadvantaged, and preferences of distribution principles using survey data collected by the Gyeonggi Institute of Education in 2020. The result of this analysis shows that the higher the subjective class consciousness, the stronger the belief of meritocracy being realized in our society. On the other hand, it is also confirmed that these students don’t take discrimination against the socially disadvantaged relatively seriously. In the preferences of distribution principles, a hierarchical structure is formed in the order of ‘ability > (mechanical) equality > need’ according to the level of subjective class consciousness, confirming the class biases of meritocracy beliefs. On the other hand, it is found that the students with a strong perception of meritocracy prefer the principle of equity as the principle of distribution. This result can be originated from the characteristics of the variable of this study. At the same time, this result suggests that students who view our society as a meritocracy society are more interested in excluding the principle of necessity than implementing meritocracy in the distribution process. Finally, in the multi-group analysis, it is confirmed that social justice education alleviates the class biases in the perception of discrimination against the socially disadvantaged while strengthens the relationship between the recognition of meritocracy and the preference for equity principle of distribution. Based on the above results, some measures are proposed to overcome the class biases revealed in the meritocracy belief and to restore the school as a great equalizer .