The　city-level　public　building　energy　efficiency　benchmarking　system　has　an　important　guiding　value　for　building　energy-saving　work,　especially　for　Beijing,　with　its　high　energy-consumption　density　and　both　long　heating　and　air-conditioning　periods.　This　paper　analyzed　the　characteristics　of　large-scale　office　buildings　in　Beijing　and　gives　a　detailed　description　of　the　process　of　establishing　a　public　building　energy　efficiency　benchmarking　system　for　large-scale　office　buildings　in　Beijing.　China,　including　data　investigation　and　verification,　Energy　Usage　Intensity(EUI)　calculation,　determining　independent　and　dependent　variables,　developing　and　testing　the　benchmarking　model,　and　deriving　the　benchmarking　rating　table.　Then　the　first　city-level　public　office　building　energy　efficiency　benchmarking　system　in　China　is　established　based　on　88　large-scale　office　buildings　in　Beijing.　The　results　showed　that　the　model＇s　performance　index　R-2　is　0.667　and　gives　a　good　representation.　The　process　has　a　strong　potential　for　replication　for　other　cities　in　China　and　even　for　a　national　energy-consumption　evaluation　system.　(C)　2018　Elsevier　B.V.　All　rights　reserved.