数据仓库是信息化发展到一定程度的产物，能够为决策支持提供强有力的支持。在构建数据仓库的过程中，需要集成众多不同的软件系统，以及设计许多模型。元数据在数据仓库的设计、集成、实现中扮演重要角色。文章结合CWM标准，对数据仓库元数据的管理架构，元数据管理系统结构，元数据存储方法等进行了研究。

Data warehouse is the product of development of information management．It can provide great help for decision making．A lot of software systems need to be integrated and many models would be designed during the building of data warehouse．Metadata takes an important role in the design，integration and implementation of data warehouse．This paper discusses the architecture of metadata management of Data Warehouse，the structure of metadata management system and the storage of metadata based on CWM．