针对水资源数据具有复杂、数据量大、多源异构等特点,论文提出了松花江流域水资源空间数据仓库的总体设计方案,在数据集成、数据清洗、数据简化与数据转换等预处理操作的基础上,构建了多维数据模型,并实现了基于空间OLAP的多维数据分析,为水资源决策分析提供有效的数据支持。 In view of the characteristics of complex, large amount of data and multi-source heterogeneity of water resources data, this paper proposes the overall design scheme of spatial data warehouse of water resources in Songhua River Basin. In the preprocessing of data integration, data cleaning, data simplification and data conversion , A multidimensional data model is constructed and multidimensional data analysis based on spatial OLAP is implemented to provide effective data support for water resources decision analysis.