Unstable cultivated land analysis method

The invention relates to an unstable cultivated land analysis method, and relates to the field of land analysis, wherein the method comprises the steps: iteratively calling land information in a plurality of preset land information databases; obtaining a plurality of cultivated land areas, drinking water source protection areas and natural protection core areas based on the land information; calling a preset judgment condition, and judging unstable cultivated land types of the plurality of cultivated land areas based on the judgment condition and the called land information, wherein the judgment condition comprises at least one of a cultivated land slope level, a cultivated land position, a cultivated land area, a cultivated land attribute and a resource map layer, and the unstable cultivated land types comprise cultivated land with the slope grade of 25 degrees or above, refined investigation cultivated land, long-term abandoned dry land, strictly controlled cultivated land, scattered broken cultivated land,