Abstract: Spatial data of forest resources is the main spatial information of data integration of forest management. The spatial data from various categories, resources, and time-scales can provide a comprehensive picture of the changes in forest resources and the ecological environment, which is also the basis of spatial analysis. Through the analysis of its internal characteristics and its different manifestations, this paper reveals the relationship and internal change laws among the various factors contained in the forest. Meanwhile, through the analysis of the correlation of forest resource spatial data, the unified expression of spatial data on multi-source forest resources is realized. And multi-source spatial data provides spatial information support for forest resource information management and shared services.