Construction cost is a comprehensive index, its management runs through the construction, production and operation activities of the whole process, involving material consumption, labor efficiency, technical level, construction management and other aspects, a wide range of content. In order to improve economic efficiency, we must effectively mobilize the enthusiasm of "a large number of employees", strengthen cost management, increase production and savings, effectively reduce costs, and strive to strengthen production, technology, quality, equipment, labor, material and cost. From all aspects of cost management, its main contents include: cost forecasting, cost planning, cost control, cost accounting, cost analysis and cost assessment.