College students joining volunteers can cultivate their sense of social responsibility, sense of hardship and social practice ability. Cultivating the sense of social responsibility can make college students have a personal understanding and feeling of the national conditions and people's feelings in the communication with vulnerable groups, marginal groups and poor areas, and in the communication activities with different levels and types of people, so as to improve their understanding and judgment of things and consciously sprout the sense of responsibility in a harmonious society, which is also the motive force and internal trend of responsible behavior.

College students' sense of hardship can not only educate them subtly, but also help them to correct their ideological understanding, broaden their horizons, establish a strong sense of hardship, enhance their sense of responsibility, and make contributions to the development of the country and the nation through personal experience. Carrying out social practice through volunteer activities can help college students understand the national conditions and society in practice, strengthen their profound cognition and understanding of theory, help them deal with the problems of dreams and reality, correctly understand the social development trend, firmly establish a sense of ownership, actively resist many words and deeds that are not conducive to the continuous development of society, and consciously fulfill their social responsibility.

Volunteer service is an important symbol of college students' civilization, an important channel for learning and social contact, and an important content of cultural construction. Volunteer service is not only an important force to gather social forces, constantly enhance social vitality, enhance social participation, reform social governance, maintain social stability and promote social harmony, but also an effective way to cultivate young people to consciously practice socialist core values, convey social care and promote social civilization.

College student volunteer activities provide young people with an excellent opportunity to get in touch with social reality and truly understand China's national conditions, which not only enriches their life experiences, but also enhances their perceptual knowledge. While volunteering, they will also understand that contributing to society is good for their future. College students' volunteer activities have enhanced teenagers' sense of social responsibility and played a positive role in improving social atmosphere and establishing professional spirit.