Research conclusions: Based on the traditional management mode of design，bidding and building ( DBB) ，the thoughts on the system － engineering － based closed loop management mode for the railway engineering project includes the following seven management elements: the project approval， index design， bidding， engineering management，engineering supervision management，works acceptance and project evaluation． Based on this mode，the all roles related to in this management mode are sorted． The management of the railway engineering project is a complicated systematic engineering． Only one management mode can not cover and contain everything and the relatives managements are needed． This research result is of the great significance to the management of the railway engineering project．