PAGE-4-Subcontractingmanagementofbuildingconstructionprojectandengineering,biddingthepriceofeffectivecontrolKeywords:project,theconstructionmarketsub-system,pricecontrolmechanism.Withtheconstructionprojectsingreaterdepthofmanagement,projectmanagementofmoreextensiveapplicationofscientificmethods,theconstructionindustrytoahigherlevelofdevelopment,setupasoundsystemofconstructionspecialistsub-contractorswillbebuildingmarketdevelopmentinChinaaretheinevitabletrend,Ithinkinthecurrentenvironment,theuseofcentralizedcontract-stylecompany,authorizedtheimplementationoftheprojectmanagement,totakethematrix-styleorganizationandmanagementstructure,focusedoncontractmanagementandproductionprocessmanagementbyobjectivesapproachisamoreeffectivemanagementofsubcontractorsform.1.Theconceptandcharacteristicsoftheproject,projectmanagement,constructionprojectmanagementfeatures.(1)projectconcept"project"wastheoriginofamorning,thebuildingindustryandthemilitaryfield,theearliestuseofprojectmanagementtoolsandmethods.Thedefinitionoftheprojecthasawiderange,buttheyallrevolvearoundthebasicconceptoftheprojectandsummarized.ISO10006intheprojectas"auniqueprocessthathasthebeginningandendoftime,byaseriesofcoordinatedandcontrolledtheactivitiesofthecomposition.Theprocessofimplementationareinordertoachievetheobjectivesset,includingtheneedsoftime,costandresourcebindingconditions."AmericanProjectManagementInstitutePMIatPMBOOK(2000version)givethedefinitionas:"projectsarecompletedforauniqueproductorserviceforaone-timeeffort."GermanNationalStandardDIN69901andshouldprojectasa"projectarereferstothefollowingconditionsaremetonauniquemission.(withtheintendedtarget,aspecifictime,financialandotherrestrictionsonhumanconditions,withspecificorganizations)."2Thecharacteristicsoftheproject(1)Auniqueanduniquenessanyiteminwhichthetiming,location,environment,participationofpeople,theaimshouldvary,theyarelinkedtoprojecttheSecondProvisional.As"peopledonothavethesametwopeople",isuniqueandunique.Inadditiontheprojectduring