The metaverse is an Artificial Intelligence (AI)-generated virtual world, in which people can game, work, learn, and socialize. The realization of metaverse not only requires a large amount of computing resources to realize the rendering of the virtual world, but also requires communication resources to realize real-time transmission of massive data to ensure a good user experience. The metaverse is currently moving from fiction to reality with the development of advanced technologies represented by AI, blockchain, extended reality, and Digital Twins (DT). However, due to the shortage of communication as well as computing resources, 245:2 X. Wang et al. how to realize secure and efficient data interaction between the virtual and the real is an important issue for the metaverse. In this article, we first discuss the characteristics and architecture of the metaverse and introduce its enabling technologies. To cope with the conflict between limited resources and user demands, the article next introduces an Integrated Sensing, Communication, and Computing (SCC) technology and describes its basic principles and related characteristics of SCC. After that, solutions based on SCC in the metaverse scenarios are summarized and relevant lessons are summarized. Finally, we discuss some research challenges and open issues. 1 INTRODUCTION As a new paradigm for the next-generation Internet, the metaverse aims to create a virtual space parallel to the real world, where people communicate through digital bodies as they do in the physical world [14]. Due to the emergence of the metaverse, researchers have been studying it and defining its concepts. Unfortunately, researchers are still unable to find the exact shape of the metaverse and its boundaries [117]. Generally, the metaverse can be regarded as a binary world, where both physical and digital virtual worlds merge. When it comes to spatio-temporality, the metaverse is a digital world that is virtual in the spatial dimension and real in the temporal dimension ; when it comes to independence, the metaverse is a virtual world that is closely linked to the physical world but with high independence; when it comes to authenticity, the metaverse has digital bodies of real-world objects and digital products that are uniquely its own. Similar to the movie Top Gun, people enter the virtual space through Virtual Reality (VR) devices as digital bodies, trade and create things in the virtual space. It has an impact on the physical world through the influence of people's thoughts and even changes people's behaviors in the physical world. To realize this dualistic world, the metaverse goes through three successive stages from a macro perspective [34]: (i) Digital Twin (DT), (ii) digital native, and finally (iii) surrealism. The first stage is to generate a mirror world corresponding to the physical world, consisting of high-fidelity DTs of people and objects in the physical world. Various attributes (user activities and emotions) in the virtual world are a high degree of simulation of physical objects. The second stage focuses on the creation of the local content in the virtual world. People can participate in the creation of virtual worlds in the form of digital avatars, which can inversely influence the physical world. In the third stage, the meta-universe can form a self-sustaining and persistent hyper-real world. The virtual world and the physical world can be seamlessly integrated. The physical world becomes a subset of the virtual world, and the virtual world produces things that do not exist in the physical world. The current development of metaverse is in the budding stage (i.e., DT stage), so the discussion of metaverse in this article is mainly focused on the first stage. Current Internet of Things (IoT) technology is developed rapidly and our life is filled with a variety of sensors for information collection. The development of 5G and beyond 5G networks has increased the rate of information transfer among nodes. Artificial Intelligence (AI) has also shown great potential for data processing and analysis. The metaverse, as a mirror of the physical world, requires real-time mapping of information from the physical world to the virtual world through DT technology. Correspondingly, communication networks need to have the ability of