Metaverse　is　a　collective　term　for　all　economic　and　social　activities　in　the　space　where　the　physical　world,　digital　world,　and　consciousness　world　are　interactively　integrated　and　mutually　empowered.　The　metaverse　is　the　advanced　stage　of　digital　civilization　and　the　future　formation　of　human　society.　The　basis　for　developing　metaverse　is　general　digital　technologies　such　as　high-performance　network,　high-performance　storage,　high-performance　computing,　high-performance　security,　and　artificial　intelligence.　On　the　basis　of　the　above,　the　key　to　developing　the　metaverse　lies　in　researching　core　technologies　such　as　digital　life　technologies,　trusted　collaborative　network　technologies,　natural　interaction　technologies,　ubiquitous　operating　system　technologies,　technologies　and　methods　for　computational　experiments,　and　theories　and　technologies　for　crowd　intelligence　science.　We　should　take　typical　metaverse　application　scenarios　as　entry　points,　such　as　the　key　fields　of　agriculture,　industry,　service　industry,　military,　social　governance,　and　other　economic　and　social　areas,　to　break　through　key　metaverse　technologies　and　implement　pilot　demonstration　projects　of　metaverse.　Through　the　demonstration,　we　can　systematically　promote　the　application　of　metaverse　in　economy　and　society　from　point　to　line,　and　continuously　iterate　and　evolve　the　metaverse　technology　to　advance　the　metaverse　to　a　higher　stage.　This　paper　systematically　analyzes　the　current　development　status　and　future　directions　of　metaverse　from　the　concept,　key　technology,　and　vision　of　metaverse,　paving　the　way　for　the　subsequent　research　of　metaverse.　©　The　author(s)　2023.