Abstract: In the process of construction, cost management is one of the very important content, and the quality of cost management will directly aff ect the development of construction enterprises, construction projects in the process of long cycle, high complexity, therefore in the process of cost management, there are also great diffi culties, once in the process of management of any resource matching problem, will aff ect the overall cost of the project, so in the process of construction engineering in the process of management, should take reasonable measures, strict management of each link, so that the project The cost of construction is controlled within a reasonable range to ensure the sustainable development of construction enterprises.