Memory is the basis of human identity. People's social memory, especially national memory, is an important condition for maintaining people's social existence. The national memory carried by public archives endows the public archives department with the responsibility of inheriting the national memory and cultivating the national memory of citizens. The public archives department should adhere to the principle of managing the party for the party, preserving history for the country, and serving the people, serve the compilation of party history and national history through the development of red archives resources, compose red stories and disseminate red memories based on red archives, and use red archives to fight against the distortion of party history and national history and the denial of national ideology to cultivate citizens' national memory.