The data warehouse and ETL are introduced, the basic frame of the ETL of the spatial data warehouse is discussed, the ETL of Guangzhou agricultural economy data warehouse is presented as an example.

• 摘要介绍了数据仓库ETL的概念和主要工作，在此基础上讨论了空间数据仓库的主要框架，并以广州农业经济数据仓库为例，说明了如何进行空间数据仓库的ETL工作。