As an important part of project management, construction cost control involves the whole process of construction, so it is necessary to strengthen the control and management of construction cost. Once the project cost control is not in place, it is bound to increase the construction cost of construction enterprises, thus affecting the overall economic benefits of construction enterprises. For example, in the bidding decision-making stage, the construction enterprises do not combine the market cost content with the construction quota to carry out the cost management, the construction cost exceeds the budget and so on, which affects the economic benefit of the construction enterprises. Based on this, enterprises need according to the specific circumstances of the project, do a good job in the whole process of project management planning, do a good job of project cost control. However, the actual situation is that construction enterprises in the project cost control still need to carry out a more in-depth fine management.