GIS-based spatial data processing method and system

The invention provides a GIS-based spatial data processing method and system, and the method comprises the steps: carrying out the spatial data feature extraction of each sub-GIS spatial data cluster obtained after the mobile measurement through a feature coding network deployed in advance, and obtaining the spatial data feature of each sub-GIS spatial data cluster according to the coding feature of the obtained sub-GIS spatial data cluster and the coding feature of each piece of contrast spatial data in a preset contrast database. And performing exception identification on each sub-GIS spatial data cluster to obtain an exception identification sub-result, thereby determining an exception identification result corresponding to the GIS spatial data set to be detected according to the exception identification sub-results of the plurality of sub-GIS spatial data clusters. Based on this, spatial data feature extraction is performed on each sub-GIS spatial data cluster through a feature coding network composed of