The popularity of the meta-universe has attracted the attention of the whole society, and the library industry has also devoted itself to the academic and practical exploration of the meta-universe for the first time. As a breakthrough point for libraries move towards the meta-universe, immersive experience is the focus of future attention and research in the library science community. Immersion theory, distributed cognition theory, personal cognition theory, etc. constitute the main theoretical basis of the immersive experience in the meta-universe library. 5G technology, extended virtual reality (XR) technology, holographic communication technology, etc. constitute the main technical basis of the immersive experience of the meta-universe library. The online and offline game service of the immersive library constitutes the main practical basis of the immersive experience of the meta-universe library. The main ways to build the immersive experience of the meta-universe library includes the development of virtual digital people, the immersive resource space, and the immersive service of the meta-universe library.