Abstract:In reality, it is not unusual in the field of construction projects that the operational and maintenance costs exceeds the construction cost. The major causes lie in the fact that in full life cycle cost management in our country there exist problems of incomplete historical data, poor information sharing, probable risk and uncertainty of future cost estimates,etc.,which largely restrict the actual application of relevant theories in addressing the full life-cycle cost calculation. In view of this, by use of BIM(Building Information Model) as the information sharing platform, and the dynamic integration of the various software tools through BIM by API interface,with the connection between the database and BIM based on ODBC, a new BIM-based solution is thus worked out to caculate full life cycle cost in construction projects.