项目成本管理是指工程施工过程中采取预测、计划、核算、控制、考核、分析等手段进行科学管理的过程,它是以降本增效为宗旨的一项综合性管理工作。对工程施工过程中所消耗的资源和费用开支进行指导、监督、调节和限制,及时纠正将要发生和已经发生的偏差,把各项施工费用控制在成本控制方案的范围之内。近年来,水电市场进入“微利时 Project cost management refers to the process of scientific management in forecasting, planning, accounting, control, assessment and analysis during the construction of a project. It is a comprehensive management effort aimed at reducing costs and increasing profits. To guide, supervise, regulate and limit the resources and expenditures consumed in the process of construction, rectify the deviation to occur and to occur in time, and control the construction costs within the scope of the cost control plan. In recent years, the hydropower market has entered a ”meager profit."