The world’s cutting-edge scientific and technological systems are developing rapidly.The digital economy with new-generation information technology and data as key elements has become a key force in reorganizing global factor resources，reshaping the global economic structure，and changing the global competition pattern.Since the outbreak of the COVID-19，digitalization of online office，education，medical care，consumption and industrial upgrading，community services，urban governance，etc.has become the norm，and an all-round “virtual and real integration” metaverse is taking shape.The Metaverse is an important platform for the interaction between the virtual world and the real society in the future.It is a new manifestation of the digital economy with huge potential.The protection of user privacy and data security is an important prerequisite for the healthy development of the Metaverse industry.To this end，the Metaverse platform should be able to meet three basic requirements：secure and reliable data throughout its life cycle，users have the ability to independently control data，and support all parties.Distributed collaborative governance.In order to achieve the three basic requirements，the security assurance technology system represented by privacy computing is the important foundation of the Metaverse，and constitutes the key technical path for the privacy protection of the Metaverse.The technical system involved in the Metaverse can be summarized by “BIGANT”：“B” refers to blockchain technology，including encryption algorithms，consensus mechanisms，smart contracts，decentralized storage，etc.；“I” refers to interactive technology，including XR，holographic image，human-computer interaction，etc.；“G” refers to electronic game technology，including game engine，3D modeling，real-time rendering，etc.；“A” refers to artificial intelligence technology，including machine learning，natural language processing，AI agent，etc.；“N” refers to network and computing technology （Network），including 5G/6G network，cloud computing，edge computing，etc.；“T” refers to Internet of Things technology，including various sensors technology.Each technical field involved in the Metaverse has specific applications that are integrated and expanded with privacy computing.This paper will correspondingly focus on 5 directions，including privacy-preserving transactions，privacy-preserving applications，privacy-preserving modeling，privacy-preserving computing networks，and privacy-preserving edge computing.The application and prospect of the combination of the two are expounded and introduced.