NOVELTY - Amino acid organic fertilizer comprises 15-30 wt.% bio-organic substance, 15-30 wt.% nitrogen-phosphorus-potassium nutrient, 0.1-5 wt.% trace element, 5-30 wt.% intermediate element, 8-20 wt.% amino acid and 5-20 wt.% water. The bio-organic substance is mixture of vinegar residue and rapeseed cake obtained through natural fermentation, where the weight ratio of vinegar residue and rapeseed cake is 1:2. In the nitrogen-phosphorus-potassium nutrient the nitrogen is urea, the phosphorus is monoammonium phosphate fertilizer and the potassium is potassium sulfate fertilizer.    USE - Used as amino acid organic fertilizer.    ADVANTAGE - The organic fertilizer improves soil structure, activates soil, reduces cost and environmental pollution, and has high utilization rate.    DETAILED DESCRIPTION - Amino acid organic fertilizer comprises 15-30 wt.% bio-organic substance, 15-30 wt.% nitrogen-phosphorus-potassium nutrient, 0.1-5 wt.% trace element, 5-30 wt.% intermediate element, 8-20 wt.% amino acid and 5-20 wt.% water. The bio-organic substance is mixture of vinegar residue and rapeseed cake obtained through natural fermentation, where the weight ratio of vinegar residue and rapeseed cake is 1:2. In the nitrogen-phosphorus-potassium nutrient the nitrogen is urea, the phosphorus is monoammonium phosphate fertilizer and the potassium is potassium sulfate fertilizer. The trace element is iron, manganese, zinc, copper, molybdenum, or boron. The intermediate element is silicon, calcium, magnesium or sulfur element, where the silicon is in the form of silicate, calcium superphosphate fertilizer, lime nitrogen or calcium magnesium phosphate fertilizer, the magnesium is in the form of magnesium potassium sulfate fertilizer, magnesium sulfate fertilizer or calcium magnesium phosphate fertilizer, and the sulfur is in the form of sulfate. An INDEPENDENT CLAIM is also included for preparing the amino acid organic fertilizer, comprising (i) adding hair, hydrochloric acid and water according to mass ratio of 1:2.5:1.2 into a reaction kettle, adding 35% concentration hydrochloric acid, reacting for 8-10 hours at 120-150 degrees C, cooling to room temperature, first time neutralizing, adding specific amount of liquid ammonia until pH is 2.5-3.5, first time filtering, retaining filtrate, decolorizing filtrate, second time neutralizing, adding liquid ammonia until pH value is 3.5-4.5, second time filtering, retaining filtrate, decolorizing filtrate, (ii) crushing bio-organic substance, adding nitrogen-phosphorus-potassium nutrient, trace element and intermediate element, stirring, adding the amino acid liquid and stirring uniformly, conveying into a rotary dryer, drying at 60-80 degrees C, opening a water evaporation machine, lasting for 1-3 minutes, drying until the moisture content is more than 20%, filtering, screening using a vibration screening machine, separating 2-5 mm particle diameter finished product, detecting and packaging.