Net　Zero　Energy　Buildings　(NZEB)　represent　a　significant　opportunity　to　reduce　building　energy　consumption　and　achieve　the　climate　and　energy　goals　that　will　be　necessary　in　the　future.　Nevertheless,　the　effective　operation　and　maintenance　(O&M)　management　of　NZEB　remains　a　significant　challenge.　This　is　largely　due　to　the　inadequate　management　of　the　O&M　phase　and　the　lack　of　comprehensive　data　integration　and　application.　Accordingly,　this　study　proposes　an　O&M　digital　twin　modeling　approach　for　integrating　data　in　the　O&M　phase　of　NZEB　and　realizing　efficient　management.　The　twin　modeling　process　comprises　data　collection,　model　construction,　simulation　analysis,　and　validation　iteration.　Empirical　evidence　demonstrates　that　the　proposed　twin　model　markedly　enhances　the　utilization　efficiency　of　O&M　data,　facilitating　the　perception,　visualization,　and　automated　feedback　control　of　NZEB.　The　proposed　digital　twin　modeling　method　offers　technical　guidance　for　O&M　managers　seeking　to　achieve　efficient　O&M　management　of　NZEB.　©　2024　The　Author(s)