The invention relates to a soil modifier for sand storm hungry farmland, which belongs to the fertilizer production technical field. The modifier for sand storm hungry farmland is prepared by mixing grass carbon, dry pine needle, bentonite, natural zeolite, humus soil, decomposed farmyard manure, soil water-retaining agent, zinc sulfate and manganese sulfate. The application method is that 10000.0 kilograms modifier is applied to each hectare farmland. After using the modifier of the invention, the volume weight of soil is reduced by 4.3%, the soil hardness is reduced by 1.8%, the quick result K is increased by 10.4% and the organic matter content is increased by 16.1%. The invention provides the soil nutrition conditioning modifier capable for improving physicochemical property of the sand storm hungry farmland, and the nutrient element and the nutrient coordination substance required by plants are added, thereby the soil modifier of the invention has the effects of soil improvement, fertilizer efficiency enhancement and environmental protection.