NOVELTY - A composite amino acid organic fertilizer is obtained by naturally drying organic compost such that the moisture content is 28-35% to obtain organic fertilizer, mixing 45-55 pts. wt. composite amino acid aqueous solution and 800-1000 pts. wt. organic fertilizer, chelating the mixture at 45-50 degrees C for 3-5 days, and air-drying at room temperature until the moisture content is 28-30%. The composite amino acid solution is obtained by drying roots of crops, crushing dried root, mixing crop root powder with hydrochloric acid, heating, cooling, hydrolyzing, and adding ammonium bicarbonate.    USE - Composite amino acid organic fertilizer (claimed).    ADVANTAGE - The composite amino acid organic fertilizer has excellent absorption effect, and effectively improves crop yield, crop quality and soil fertility.    DETAILED DESCRIPTION - A composite amino acid organic fertilizer is obtained by naturally drying organic compost such that the moisture content is 28-35% to obtain organic fertilizer, mixing 45-55 pts. wt. composite amino acid aqueous solution and 800-1000 pts. wt. organic fertilizer, chelating the mixture at 45-50 degrees C for 3-5 days, and air-drying at room temperature until the moisture content is 28-30%. The composite amino acid solution is obtained by drying roots of crops until the moisture content is less than 12%, crushing the dried root into a powder having particle size of 1 mm or less to obtain crop rhizome powder, mixing 2 pts. wt. crop roots powder with 6-8 pts. wt. 26-28% hydrochloric acid solution, heating to 85-97 degrees C, dissolving crop roots powder in hydrochloric acid solution, cooling, hydrolyzing, and adding ammonium bicarbonate until pH is 6-8. The organic compost is obtained by mixing 1 pt. wt. baking powder, 1-3 pts. wt. inorganic compound containing trace elements, 23-27 pts. wt. biogas and 13-17 pts. wt. straw powder, maintaining the mixture at 45-50 degrees C for 46-48 days. The straw powder is dried and pulverized to a particle size of 1 mm or less. The biogas is obtained by mixing 20-30 pts. wt. vinegar, 35-45 pts. wt. human and animal excreta, 0.15 pt. wt. 3.5% magnesium sulfate solution, 0.15 pt. wt. 20% ferrous sulfate, fermenting at 77-81 degrees C for 46-48 days, performing solid-liquid separation, and adjusting the pH to 7-8. The baking powder is obtained by mixing 10 pts. wt. sucrose, 15 pts. wt. agar, and 200 pts. wt. water, heating to 55 degrees C, adding 50 pts. wt. mashed potatoes and 50 pts. wt. soybean meal, mixing, adding 1 pt. wt. yeast powder, fermenting at 61-63 degrees C for 46-48 days, adding 100 pts. wt. carbon powder, stirring, and stacking for 2-3 days.