Abstract: With the rapid development of the national economy and the continuous improvement of the comprehensive strength, the life style, living standard and living quality of our residents have been greatly improved, so people also have new requirements for the way of travel. The construction expenditure of metro projects accounts for an important proportion of local economic expenditure, and funds are managed and controlled for each construction management link in the construction cycle as well as the manpower, material resources, resources and equipment involved, this article mainly from the strict control subway project cost importance,the infl uence subway project cost factor as well as the control strategy but launches around.