Sustainable treatment method for desertification grassland

The invention relates to a sustainable control method for a desertification grassland, and the method comprises the following steps: S101, grassland desertification measurement: measuring the grassland desertification degree through an unmanned plane, and emphatically marking an area with the desertification exceeding 70%; s102, hydrothermal condition measurement: measuring the hydrothermal condition of the grassland area through multi-element remote sensing; s201, the grassland area to be treated is subjected to mechanical enclosure or biological enclosure to form a closed area; s202, grass checks are laid on the grassland area with more than 70% of desertification measured in the step S101; s300, irrigation, wherein the grassland area to be treated is subjected to bottom water irrigation or spray irrigation; s400, sowing, wherein grass seeds are sprayed through an unmanned aerial vehicle after bottom water irrigation is conducted for 1-2 days; if spray irrigation is adopted, grass seeds are sprayed immediat