The　climate　environment　between　southern　ocean　and　inland　is　exceedingly　diverse　in　China.　To　investigate　precisely　the　science　and　accuracy　of　climate　partition　belonging　for　island-reef　building,　this　paper　firstly　makes　an　analysis　synthetically　for　the　standard　status　of　building　climate　demarcation　at　home　and　abroad,　and　then　points　ont　the　problems　in　island-reef　building　climate　partition　and　indicates　the　subsequent　research　direction.　The　results　indicate　that　building　climate　demarcation　standard　performed　by　our　country　now　is　inapplicable　for　island-reef　building.　Therefore,　it’s　necessary　to　seek　a　new　climate　demarcation　method　to　zone　all　territory　areas　in　ocean　and　continent.　Considering　the　necessity　of　moisture　control　design　for　island-reef　building　and　the　strict　air　quality　requirements　of　temperature　and　humidity　for　the　ultra-low　energy　consumption　buildings,　atmospheric　humidity　cannot　be　ignored　in　new　climate　demarcation　method.　©　2019,　Editorial　Board　of　Acta　Energiae　Solaris　Sinica.　All　right　reserved.