Building a harmonious socialist society is a long-term historical task, which runs through the whole process of Socialism with Chinese characteristics's cause. It is the historical process and social result of correctly handling various social contradictions on the basis of development. College students are very valuable human resources, the hope of the nation, the future of the motherland and the successor force to build a harmonious society. As a special group in social stratum, it shows its unique position and function and is an important force that can not be ignored in building a harmonious socialist society. Keywords: college students, harmonious society and role-playing, building a harmonious socialist society is an important strategic task of building a well-off society in an all-round way put forward by the Fourth Plenary Session of the 16th CPC Central Committee. The proposal of a harmonious society is a sublation and transcendence of the beautiful tradition of pursuing harmonious virtues, a criticism and reflection on the experience and lessons of China and the world, and a re-understanding and re-summary of the laws of governance, socialist construction and the development of human society. This is a great practice and a historical responsibility entrusted to contemporary college students by the times. The economic construction, political construction and cultural construction to be realized in building a harmonious society are parallel. All belong to Socialism with Chinese characteristics's strategic goal! However, it has given Socialism with Chinese characteristics a new connotation and actually defined the role of college students in a harmonious society, that is, college students are the builders and successors of Socialism with Chinese characteristics! Therefore, it is also a new force and main force in building a harmonious society. The socialist harmonious society we want to build is a society of democracy and rule of law, fairness and justice, honesty and friendship, vitality, stability and order, and harmony between man and nature. The construction of this kind of society, from the social level, is the construction of social economy, politics, culture and spiritual civilization and its system; From the perspective of college students, it is a call for college students' harmonious virtue. "Whether a society is harmonious or not and whether a country can achieve long-term stability depends largely on the ideological and moral quality of all members of society." College students are very valuable human resources, the hope of the nation, the future of the motherland, the main body of building a harmonious campus and the successor force of building a harmonious society. Therefore, in the process of building a harmonious socialist society, we college students should give full play to their roles. As a social knowledge group, college students undertake the historical mission of the future construction and development of the motherland. As members of a specific society, college students are always influenced by the group personality of this society. On the contrary, college students are an important part of social groups. Its individual will also affect the construction of a harmonious society and the formation of social spirit. Because in our country, it is a group composed of individual college students. Millions of people join social groups every year, which is a social force that cannot be ignored. We believe that only every cell in society can achieve harmony. Only in this way can the whole society be harmonious. So what kind of influence should college students have? College students should be the backbone of creating material wealth in a harmonious socialist society. Building a harmonious society must be based on developed material production. Without strong economic strength, it is impossible to meet the growing material interests of the broad masses of the people, and there is also a lack of the most fundamental conditions for solving all social problems. Therefore, in order to achieve the goal of a harmonious society, we must first fully develop the economy. The realization of the goal of a harmonious socialist society requires not only the joint efforts of all the people, but also the unremitting efforts of the vast number of young people. As a special social group among young people, contemporary college students are outstanding elements among young people and extremely valuable intellectual resources of the country. Because of their age advantage and high knowledge and skills, they will be in the golden age of life development and creation for a long time to come, can provide more wealth for social development, can play the role of commandos and main forces in building a well-off society in an all-round way and realizing socialist modernization, and become the backbone of the necessary material foundation for creating a harmonious socialist society. In building a harmonious socialist society, college students should be pioneers of political civilization. Building a harmonious society must be guaranteed by the progress of social and political civilization. Without a developed political civilization, the correctness and progressiveness of Socialism with Chinese characteristics cannot be demonstrated, and without an effective ideological weapon to unite all people's forces, it is impossible to make social, economic, political and progress develop in harmony. Therefore, to achieve the goal of social harmony, we must develop political civilization. Contemporary college students are college students in the new era who have grown up since the reform and opening up. They have a clear understanding of the situation at home and abroad and various social trends of thought. Most of them have a high degree of patriotic enthusiasm, actively demand social changes and have high expectations for the development prospects of the country, society, economy and politics. Therefore, college students play an important role in building a harmonious socialist society and political civilization. College students should become an important force to spread the advanced culture of socialist harmonious society. To build a harmonious socialist society, it is not enough to rely only on rich material foundation and developed political civilization. To achieve this goal, we must also rely on building a harmonious advanced culture. As the direct education object of mainstream culture and ideology, college students have better ability to accept, absorb, filter and master new things and concepts than others after receiving systematic mainstream education. Therefore, college students' choice and creation of culture, as well as their continuous internalization and filtration of cultural elements needed for social progress, will have a positive demonstration and driving role in society, thus forming a power of identification with mainstream cultural concepts and subject values. The connotation and essence of a harmonious society are very rich. Fundamentally speaking, a harmonious society is mainly people-oriented, including the harmony between people, people and society, and people and nature. In essence, it is to form a situation in which all people "do their best, get their place, and live in harmony". This not only provides a rare opportunity for the development of contemporary college students, but also puts forward new and higher requirements for their social roles. Therefore, college students must constantly improve their own quality and gradually optimize their social roles. In the process of college students' social role-playing, the correct orientation is the prerequisite for the success of social role-playing. Correct orientation is also beneficial for college students to understand their social status and social role, and enhance the purpose of behavior in the process of social role playing. First of all, as a contemporary college student, we should be clear about our basic role as a "student", so we should strive to learn our professional level well, and use our professional level to play its due role in the construction, participate in the practice of building a harmonious society in the process of learning, and keep learning in practice. Cultivate one's sense of harmonious society. As college students in a contemporary harmonious society, they should strive to realize the fundamental interests of the overwhelming majority of the people. Cultivate the concept and quality of handling affairs according to law and obeying discipline and law; Consciousness of fairness and justice, maintaining social justice according to certain moral principles and concepts; Establish the ethical concept of harmonious coexistence between man and nature, form a correct sense of ecological responsibility and obligation, and care about the ecological consequences of social and economic development; We should be honest, kind, simple, strong and enterprising, and develop ourselves in society and study life. Cultivate your own structure and adaptability, and improve your own quality. Do everything possible to participate in the construction of a harmonious society, promote the construction, and develop yourself in the construction. Pay attention to all kinds of activities beneficial to the construction of a harmonious society and actively participate in them. Through school, society and self-organization, organize and create beneficial areas of activities to promote construction. As builders and successors of Socialism with Chinese characteristics, contemporary college students are both implementers and creators, and they are one of the high-quality builders of a harmonious socialist society. We should give full play to our intelligence and wisdom in building a harmonious society, develop ourselves in construction and build a society in development. As a social knowledge group, college students undertake the historical mission of the future construction and development of the motherland. In the process of social history, as the main force of society, we should play our role to promote the development of the motherland. In the process of building a harmonious socialist society, college students have a very important position. As long as we are willing to participate in it, we will certainly play a huge key role in the great cause of social development and construction. Create material wealth and spiritual wealth for the society, shoulder the historical mission and realize the value of life. References: on college students' associations; Wang Weiguang's Theory of Harmonious Socialist Society: Jiang Chuanyue's Research on the Values of Building a Harmonious Socialist Society; and Chen Wenjiang/Yaping Zhou's Social Equity: An Important Driving Force for Building a Harmonious Society.