The work aims to design an immersive ice play game for overseas audiences in the "Post Olympic Winter Games Era" and take the cross-media narrative interaction of sports games as the entry point to promote the construction of the communication mode of Chinese excellent national sports in the context of cross-cultural communication, and explore the new narrative practice path for China's national image building and international communication of Chinese traditional culture. Based on Flow theory and Game Flow model, the relevant factors affecting game immersion were investigated and analyzed, a "Six-factor Model" was constructed, the "Ice Play" immersive game design was realized based on VR roaming interaction system of VIVE Pro2, and the usability and functional effect of the game were evaluated. Digital media technology is used to design the style, interface, scene, story and other aspects of the ice play game to achieve immersive experience and immersive cultural interaction form and innovate the strategy of cross-cultural communication of Chinese sports culture and external communication, thus providing a practical path for international communication of building a "credible, lovely and respectable" image of China.