Abstract: Based on the existing multi-sources spatial data,the paper applies a spatial data fusion tech-nique to the production and updating of spatial data.After introducing the general framework andflow,the relevant contents and methods are specified sequentially in detail.This spatial data applica-tion strategy is made after data analysis and assessment.Then,the differences among multi-sourcesspatial data are eliminated through the spatial data integration,and the relationships of homologousentities are built through spatial data matching.At last,after data fusion and updating,the new spa-tial data with high usability is achieved.The efficient and reliability of this method are demonstratedthrough practical production.