SincetheSeventeenthNationalCongressoftheCommunistPartyofChina，theCommunistPartyofChinagraduallybuiltandupgradedinstitutionalsystemswithPartyConstitutionasfundamentalanddemocraticcentralismascore，withaviewtoimprovethescientificlevelofitsself-building。Thescientificlevelofsystemicbuildingimprovedonthewhole，achievementsofinstitutionalinnovationincreasedsignificantly，andworkingsystem，organizationalsystem，leadingsystem，electivesystem，andthesupervisionandsecuritysystemconstantlyenrichedandimproved。Duringthecourseofconstantlypromotingsystemicbuildingandsystemicinnovation，theCommunistPartyofChinaaccumulatedalotofvaluableexperience，summarizedanddeepenedunderstandingforthelawofCommunistParty’sgovernanceandgoverningParty’sself-building。Ofcourse，Party’sinstitutionalsystembuildingwillbeaprotracted，dynamicandopen-endedprocess，needscontinuouslypromotingandconstantlyupgradinginthecourseofdoublyexploringtheoriesandpracticesbyadheringtocombineinheritancewithinnovation。