Chinese national community consciousness is an important task and distinctive main line to strengthen and improve national work in the information age, and the role of red culture as an essential carrier of Chinese national historical memory to promote Chinese national community consciousness cannot be ignored. The transformation of red culture resources through digital empowerment is described in this paper, and the digital development path of red culture in the information age is constructed. Then, it analyzes the internal logic of red culture forging the sense of community of the Chinese nation, and utilizes the coupling model and regression analysis to study the path of red culture forging the sense of community of the Chinese nation. Finally, taking Guangxi Province of China as an example for empirical evidence, the comprehensive score of Guangxi’s red culture development rises from 0.268 in 2016 to 0.735 in 2022, an increase of 0.123, and the degree of coupling and coordination between red culture and casting a firm sense of community of the Chinese nation is in the range of 0.3 to 0.5. It indicates that the red culture and casting a firm sense of community of the Chinese nation of Guangxi Province have an excellent coordinated development trend in the period of 2016-2022, and the red culture for the promotion of Chinese national community consciousness is a good solution. The trend of coordination development provides a practical path for red culture to promote the development of casting Chinese national community consciousness.