The invention relates to an agricultural soil loosening compound fertilizer, a method for preparing the same and application of the agricultural soil loosening compound fertilizer. The agricultural soil loosening compound fertilizer comprises 10-30% of total nitrogen on the basis of P2O5, 10-30% of phosphorus on the basis of the P2O5, 10-30% of potassium on the basis of K2O, 0.1-2% of soil loosening agents and the balance attapulgite. The agricultural soil loosening compound fertilizer, the method and the application have the advantages that the fertilizer application rate can be reduced, and problems of hydropenia of crops, poor fertilizer absorption and the like due to soil hardening and soil texture hardening can be solved; the agricultural soil loosening compound fertilizer is good in water solubility and high in flocculation capacity, soil micro-particles can be promoted to form excellent granular structures, the porosity of soil can be enhanced, the permeability of the soil can be improved, water, fertilizers, air and heat in the soil can be harmonized, the fertility can be improved, aerobic microorganisms can be increased, harmful substances can be oxidized and decomposed, accordingly, harmful substances in the soil can be reduced to a great extent, butt root diseases and root rot diseases can be prevented, the plantability of the soil can be improved, water consumption can be reduced, the yield of crops can be increased, and the quality of the crops can be improved.