In the Internet age with developed information and media, influenced by global economic integration, informatization and the progress of scientific and technological civilization, the regional differences of architecture are narrowing, the phenomenon of "architectural culture convergence" continues to develop, and the characteristics of cities and buildings are disappearing. Academy was the place where ancient Confucian scholars gathered, gave lectures, collected books, studied arts and enjoyed themselves. It was also an important place for spreading traditional culture in ancient China. It has played an important role in spreading cultural ideas and popularizing basic education, and its use has also been influenced by both official and private schools, forming an architectural group with lecture, sacrifice and book collection as its core functions and lecture hall, memorial hall and library building as its main body. This paper investigates and analyzes the historical heritage, form layout, characteristic elements and other key points of the academy's architectural cultural space, combs the overall cultural background, regional culture and geographical environment of Jiangnan Academy, and discusses the design and application of contemporary academy's cultural space through the design and application practice of academy's cultural space in Jiangnan architecture.