1. The historical changes of costume features in the Song Dynasty, from simplicity in the early years to luxury in the late years, on the one hand showed the development of social economy, on the other hand, it also showed the gradual decay of the ruling class. Second, the costumes of the Song Dynasty clearly reflected the influence of ethnic minorities. Zhu said: "The clothes in this world are mostly Hu clothes, such as collars, boots and shoes." This is a long-term ethnic exchange. Students should be made aware that cultural exchanges between ethnic groups have played a role in enriching people's material and cultural life. Thirdly, the custom of foot-binding in Song Dynasty showed the decadent values of the ruling class and the low status of women at that time. The appearance of the wretched is the result of urban prosperity, commercial development and the expansion of the ranks of citizens. The content of Wazi is not only material life, but also spiritual life, which reflects the expansion of commercial activities in Song Dynasty.