The invention provides an agricultural organic fertilizer, which is prepared from the following raw materials in parts by weight: 20 to 25 parts of crop straw, 10 to 15 parts of animal feces, 5 to 10parts of humic acid, 5 to 8 parts of weathered coal powder, 5 to 8 parts of dipotassium hydrogen phosphate, 5 to 8 parts of corn cob, 4 to 6 parts of seaweed powder, 4 to 5 parts of urea, 4 to 5 partsof fish pond sludge, 4 to 5 parts of fermenting bacteria, 2 to 4 parts of magnesium phosphate, 1 to 2 parts of sodium molybdate, 1 to 2 parts of compound sodium nitrophenolate, 0.5 to 1 part of traceelement additive, 0.5 to 1 part of synergist, 0.5 to 1 part of conditioning agent, 0.5 to 1 part of antiviral agent, 0.5 to 1 part of soil-modified functional flora, and 0.5 to 1 part of penetrant. The agricultural organic fertilizer provided by the invention adopts fish pond sludge as a partial raw material, which can not only improve the nutrient content of the organic fertilizer, but also enrich the flora in the organic fertilizer, thereby improving the fermentation efficiency and fermentation quality of the organic fertilizer raw materials, and enhancing the fertilizer efficiency uniformity and fertilizer efficiency stability of the organic fertilizer, and simultaneously not polluting the environment, and having high environmental performance.