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The world today is undergoing profound changes. The current study examined the impact of variability level on social justice perception. A survey was conducted among 648 participants to assess their perceived variability level, variability direction, uncertainty and social justice perception. The findings revealed that: (1)People generally experienced elevated levels of variability at present. (2)The variability level positively predicted social justice perception. (3)The variability level affected social justice perception through the chain mediating effect of variability direction and uncertainty. When the level of variability was high, people believed that the direction of the variability was more positive and the uncertainty was lower, accordingly their social justice perception became higher.当今世界正经历深刻变革。本研究探讨了变异性水平（variability level）对社会正义感知（social justice perception）的影响。研究面向648名被试开展问卷调查，以评估其感知到的变异性水平、变异性方向（variability direction）、不确定性（uncertainty）及社会正义感知。研究结果表明：(1) 总体而言，当前人们感知到的变异性水平有所升高；(2) 变异性水平对社会正义感知具有正向预测作用；(3) 变异性水平通过变异性方向与不确定性的链式中介效应（chain mediating effect）影响社会正义感知：当变异性水平较高时，人们会认为变异性方向更积极、不确定性更低，进而社会正义感知水平更高。