The "Top Ten Technologies of the Metaverse" written by the Metaverse Industry Committee of the China Mobile Communications Federation has been published. This book summarizes the technology system of the Metaverse into five fundamental technologies and five pillar technologies. The "five fundamental technologies" include: Computing technology, storage technology, network technology, system security technology and AI technology; "five pillar technologies" include: interaction and display technology, digital twin and digital native technology, technology for creating identity system and economic system, content creation technology and governance technology.