With the era of globalization and the blending and collision of world cultures, the ideal country has entered the eastern world, especially the cultural system of China, which has also had a certain impact on our China culture and the traditional oriental way of thinking. In this context, how to "take the essence of such excellent foreign culture and get rid of its unsuitable dross", so that foreign culture and China culture can make up for each other, absorb each other, and achieve mastery, which is a subject worth pondering. Just as the issue of justice discussed in The Republic has greatly promoted the shaping of western "justice" thought, it still has a little storm in front of China's traditional "justice" view, and it can't produce a shaking effect, which also reflects that the "justice" view in China culture still has strong vitality. Therefore, in this context, it is of profound significance to read The Republic and rethink justice. The justice thought in the Republic finally came together with the law. After Plato talked about justice in the Republic, philosophers such as Aristotle, Hobbes and Rawls appeared to discuss justice in depth. The western thought of justice is inextricably linked with law. Of course, western law pursues justice, but the primary goal is to pursue equality. As long as the process is equal, they think that justice has been done. Therefore, western law emphasizes procedural justice. Even later, the development of justice tends to be more realistic, and it is better at finding a breakthrough on the basis of acknowledging and accepting reality and solving problems in an institutionalized way (such as law). The premise of western justice view is to affirm the rationality of self-interest in the face of justice. Source: the second half of the new west