Basedonsquaremetersformeasuringunitreflectconvertingindexofthehousingconstructionscale,intheconstructionprojectcostmanagementplaysaveryimportantrole,isoneofthemainindicatorsofhousingconstructionvaluation.First,theimportantindextodeterminetheconstructionplan;Second,thebasisofthetechnicalandeconomicindicators;Third,thebasisofcalculationaboutthebreakdownofquantities;Fourth,themainbasisofestimatesofselectionindexandorchestration.Results:meettheneedoftheengineeringcostvaluation,intheprocessofrevisionreflectsthenewstructuresandnewtechnologiesontheconstructionareaofcalculation,theinfluenceofthehabitofconsideringtheconstructionareaofcalculationandinternationalpractice,throughtotheapprovalofreview,modifyopinions,completefinalizedandimplemented.Standardconstructioncontractandconstructioncontractvaluationbehavior,safeguardthelegitimaterightsandinterestsofthehair,contractbothsides,promotethehealthydevelopmentofconstructionmarket.Throughpublicityandimplementofthe"method",isbeneficialtothedeepunderstandingofvaluationmethod,canaccuratelygraspthecontentoftheclauseinthestandardprojectvaluationbehavior,promotethesustainableandhealthydevelopmentoftheconstructionmarket.