【正文】 t relates to the cost of the design changes must be approved by the design units， construction units scene representatives， supervision engineers mon signature， andshould be ahead of this type of change， reduce losses， because it has been pleted or partially pleted project will entail the demolition of the contents， it is bound to cause major changes to the loss. Therefore， the construction units should be assigned to the project cost managementprofessionals Permanent construction site， to grasp at any time. Control project cost of the changes.Works on the scene visa formalities through strict control of theconstruction project supervision system， the establishment of specialized departments， Professional use of the professional management of projects and to avoid project management personnel just visas， not economic account of the phenomenon. Investment out of control caused serious13the stage of the project cost managementconsequences. To serious change visa procedures to be taken to the building， Supervisor， the construction site together representatives signed the way to ensure that change， visa authenticity， legitimacy， economic and avoid fraud and the resulting phenomena arising from the dispute.In the course of construction， the construction units to enhance onsite construction management， the drawings， substitution， the scene visas， costs for the necessary changes should be done first afterwards， after money， Change event on the timely change in the calculation of the workload and the cost of change occurred to grasp at any time cost of the project level， things to avoid a backlog of work that the true cost of the project.Construction unit representatives to the scene to supervise doing a good job record， particularly concealed records and visas， reduce clearing the passing phenomenon. Many works visa scene is not as serious， works to bring a very large settlement of the trouble， lead to considerable economic losses， the scene strict visa management of the construction phase of the project cost control key.Of project list rigorous review of the project on the review ofinventories， Engineers’ monitor list of measures to control the project. BOQ to provide the list of measures is to plete construction projects， occurred in the preconstruction engineering and construction process technology， life and safety aspects of nonengineering projects entities. At this stage because many projects are in construction plans and the construction site of the imperfections on the tender wait until the construction tender of the project design and actual scene have better access. Management Engineer14the stage of the project cost management addresses the gathering firsthand information on the original， itemized checking identification， inconsistent make revisions.Control material consumption， rationally define material prices. Cost of the project control materials price control is the main， the cost ofmaterials in engineering often holds substantial proportion， usually accounts for the estimated costs of 70%， representing the direct costs of 80%. It is necessary in the construction phase in strict accordance with the contract amount of material control。 material set reasonable prices， so as toeffectively control the cost of the project. Market economy material supply a variety of channels， variety and price range materials， construction unit budget management and field personnel should pay close attention to market rates， with the progress of the scene， the market， hand in the construction of the information and materials for the pletion of the accounts provide a strong basis.Technology and economic integration， strengthening investment control. Effective control of the investment， from organizational，technical， economic， contracts， and other measures. Therefore， the construction units must strengthen management， engineering and technical personnel of the amp。quot。economyamp。quot。 concept， the quality of education， Training pragmatic working style， the construction side to help improve construction design， reasonable security， financial， and material resources. Accelerate the pace of work to improve the quality of the projects. Construction should encounter problems in a timely manner with the designer linked to choose both economic and scientific potential solutions， overe the waste caused by mand， to give due attention to the importance of investment in conservation， is responsible for the engineering technician with thebination of economic officers from the tender， contract negotiations， costing the budget， signed paid to the progress of the pletion of the15the stage of the project cost managementaccounts， a cost analysis， the whole process management and strictly control the cost of the project.Do a good job clearing price pletion of the assessment project is the pletion of settlement construction enterprises in accordance with theprovisions of the contract internal pleted by the contractor， experience resumption quality standards and ply with contract requirements， to the building of units of the final settlement price of the project. After thepletion of the audit settlement is approved construction project cost basis. Clearing the pletion phase project cost control. For a long time， the pletion of construction drawingsclearing budget is the cost management problems to be solved. Therefore， the pletion of the audit settlement is a very important task， should focus on acplishing the following aspects:To audit the accuracy of output. The project is the pletion of audit settlement audit， the most important and most plex， one of the most meticulous work， must plan to the pletion of the project， designchanges and construction site as the basis， fixed in strict accordance with the provisions of engineering calculation rules itemized audit， to prevent the construction of the project pleted clearing inflated output to inc