关键词: 已完建筑工程, 数据仓库, 联机分析处理（OLAP）, 数据挖掘, 风险评价

Abstract: Based on the current situation and existing problems of construction enterprises in managing the data of completed construction projects，building the data warehouse as a new model for construction enterprises to manage the data of completed projects is proposed.The three-layer system is structured and the developing method and process of the data warehouse system are illustrated.The application domain of data warehouse in construction project management is analyzed which includes supporting the decision making of project management utilizing OLAP，the integration and renewal of construction project data and data mining based on data warehouse and so on.The applying process is detailed with project risk assessment as an example.The aim of this study is to provide a new method to improve the informationization and project management level of construction enterprises.

Key words: completed construction projects, data warehouse, On-Line Analysis Processing（OLAP）, data mining, risk assessment