To strengthen the awareness of the Chinese national community, it is necessary to build a scientifically complete theoretical system of the Chinese national community. Theory is the cornerstone of ideology. For thousands of years, the Chinese nation has always regarded the unification as the "common law of heaven and earth, and the universal meaning of ancient and modern times." Throughout history, exchanges and integration among various ethnic groups have never ceased. The fact fully proves that the identification with the Chinese national community plays a decisive role in the formation of the Chinese nation, rather than factors such as race, blood, region, religion, etc. The diversity and unity of the Chinese nation is a rich legacy left to us by our ancestors, and it is also a huge advantage for China's development. The deeper the theoretical research, the stronger and more powerful the support for ideology. To strengthen the sense of community of the Chinese nation, we must base ourselves on the long history of the Chinese nation and strengthen the construction of the theoretical system of community of the Chinese nation. One is to optimize disciplinary settings, strengthen disciplinary construction, align research directions, deepen research on major fundamental issues of the Chinese national community, focus on solving the problems in China's ethnological research that are influenced by Western ethnic theoretical ideas and discourse systems, and accelerate the formation of China's independent historical, discourse, and theoretical system of the Chinese national community. Secondly, we will continue to promote the compilation of the general history of the Chinese nation and the history of communication, exchange, and integration of the Chinese nation. We will make good use of textbooks such as "Introduction to the Chinese National Community" and do a good job in excavating, organizing, and utilizing cultural relics and ancient books. The third is to focus on stimulating the enthusiasm, initiative, and creativity of the vast number of experts and scholars, strengthening the training of young experts and scholars, providing them with good directions, building platforms, and creating opportunities, and encouraging them to explore the potential