关键词:工程项目;成本管理;成本预测;项目施工Abstract: Project cost management is in the guarantee satisfies contract requirement under and so on project quality, time premises, has the expense to the project implementation process, through activities and so on plan, organization, control and coordinated achieves the predetermined cost goal, and reduces the cost expense as far as possible one kind of scientific management activity, it mainly (for example plan of construction's formulation compared to chooses), the economy through the technology (for example calculation) and the management (for example construction organization manages, each rules and regulations and so on) to move achieves the predetermined target, realizes the profit goal. key word: Engineering project; Cost management; Cost forecast; Project construction