Abstract:Social fairness is one of human's long pursuit, as well as core values of social governance in contemporary China. Severe class differentiation and class solidification in Chinese society, however, have been a main constraint on social fairness. Therefore, focusing on social objective status quo, people's subjective feeling, and interventional strategies, social class psychology explores the below issues, including the mental mechanism on which social stratification hinders social fairness, different social classes' psychological characteristics of perception of social stratification and social fairness, and how to promote social mobility and social fairness. The future social stratification and social fairness researches based on psychological perspectives should be devoted to theoretical localization, methodological diversity, and application of scientific achievement.