According　to　Intergovernmental　Panel　on　Climate　Change　(IPCC)　statistics,　the　construction　industry　is　one　of　the　main　sources　of　greenhouse　gases　emissions,　accounting　for　about　32%.　The　carbon　emissions　of　buildings　in　the　operation　stage　accounts　for　60%-80%　of　the　whole　life　cycle.　According　to　previous　research,　the　carbon　emissions　in　Beijing　are　far　higher　than　those　in　most　other　cities　in　China,　but　there　are　still　some　deficiencies　in　the　research　on　the　carbon　emissions　of　the　operation　of　buildings　in　Beijing.　First,　based　on　the　traditional　emission　coefficient　method,　the　operation　calculation　model　of　carbon　emissions　in　the　operation　of　buildings　in　Beijing　was　established　in　time　series,　and　the　direct　and　indirect　carbon　emission　factors　of　Beijing　were　modified.　By　simulating　and　analyzing　the　carbon　emissions　data　in　the　operation　of　buildings　in　Beijing　from　2005　to　2019,　the　carbon　emission　of　operation　inventory　was　compiled　based　on　the　energy　method　of　different　industries.　Second,　Kaya　identity　and　LMDI　models　were　used　to　analyze　the　contribution　of　various　driving　factors　of　carbon　emissions,　and　three　scenarios,　i.e.,　high　carbon,　medium　carbon　and　low　carbon　were　used　to　predict　the　changes　of　carbon　emissions　in　the　operation　of　buildings　in　Beijing.　Results　show　that　the　heat　and　electricity　carbon　emission　factors　in　Beijing　decrease　year　by　year.　The　carbon　emissions　in　the　operation　of　buildings　reaches　the　highest　value　in　2012,　indicating　it　has　met　the　goal　of　peak.　The　overall　carbon　emissions　demonstrates　a　trend　of　decrease　in　the　future.　The　research　results　provides　a　scientific　basis　for　the　prediction　of　the　carbon　emissions　in　the　operation　of　buildings　in　Beijing.　©　2022,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.