The work aims to study the immersive experience design method and design practice of urban intelligent museum from the perspective of interactive narrative. The elements and characteristics of interactive narrative of intelligent museum were studied through case studies and other methods, and the relationship between interactive narrative and immersive experience of intelligent museum was further explored. From three aspects of constructing multi-sensory immersive experience across digital media, reconstructing interactive narrative elements and associated narrative content, creating context-aware narrative space and interactive story experience, the design method of immersive experience of intelligent museum based on interactive narrative was proposed, and the process of immersive experience design of intelligent museum based on interactive narrative was designed. The feasibility and effectiveness of the method were verified from the perspective of practicing the immersive experience project of Liangzhu Museum. Designers encode narrative space and narrative content, use cross-digital media to facilitate multi-sensory immersion, extract intelligent museum culture as narrative themes, and optimize immersive interactive experience space, so that visitors can transcend time and space limitations, deeply interact with the historical context and cultural connotation of the city, and thus have a stronger identification with urban culture.