Construction of Memorial Hall of The First National Congress of The Communist Party of China has completed in April 2021, which consists of the site of the first CPC National Congress, the Oath Hall, and a newly built exhibition hall. The new museum takes the "Great Beginning―The Chinese Communist Party creates a Historical display" exhibition as the basic exhibition hall. There are seven sections, namely, "Advancing and Succeeding, Saving the Nation and Striving for Survival", "Public Awakening and Socialist Choice", "Early Organization and Spark", "Creating the World and Rising East", "Forging ahead and Glorious Course" and the End Hall. These halls tell the glorious course of how the CPC united and led the Chinese people to achieve the great rejuvenation of the Chinese nation over the past 100 years. This paper takes the digital design and construction of the new exhibition hall as an example, relying on the technologies of in-depth design, process simulation, smart site, virtual reality and so on, tells the important role of BIM technology in the construction process of the Great Memorial Hall of the Communist Party of China.