  Metaverse is a new type of Internet application and social form that
integrates a variety of new technologies. It has the characteristics of
multi-technology, sociality, and hyper spatiotemporality. This paper introduces
the development status of Metaverse, from the five perspectives of network
infrastructure, management technology, basic common technology, virtual reality
object connection, and virtual reality convergence, it introduces the technical
framework of Metaverse. This paper also introduces the nature of Metaverse's
social and hyper spatiotemporality, and discusses the first application areas
of Metaverse and some of the problems and challenges it may face.
