Sincethe100yearsafter1840,thePalaceMuseumhasneverhadlarge-scalemaintenance.

　　AfternewChinawasfoundedin1949,thePalaceMuseumthroughtothepalacebuilding,accordingtothecensus,theexistingproblemsoftheForbiddenCity,theancientpalaceimplementrepairinthehistoryofthefirstfive-yeargovernanceandemergencyplanning,radicallychangedtheoldsocietyleftthepalaceofdesolatevisage,maketheremnantsoftheshowamagnificentscale.

　　In1973,thePalaceMuseumwasaccordingtotheinstructions,andformulatethesecondfive-yearplanningthePalaceMuseumfive-yearrepairprotectprogramming".Theplanningofancientarchitectureinadditiontoenhancerepairoutside,mainlyinvolvesinstallingheatpipeandcableengineering,wastewaterpipelineengineering,lightningprotectionequipment,etc.,moreprofessionalprotectionscheme.

　　Andsince2002palaceoverhaulplan,lastsuntil2020.Thisonephaseexceptinopenaftersomerepairofscenicspots,butalsobythepalacewillmorethan1,000stafflong-termoccupationofficehousestotherepairs,attheappointedtime,"open"bytheproportionwillnowincreasedto30%ofmorethan70%.