NOVELTY - Selenium-enriched amino acid microbial organic fertilizer comprises (i) preparing complex amino acid aqueous solution for crop root stem, drying, passing the hydrochloric acid liquid into reaction tank and gradually adding alkali entering ammonium bicarbonate for neutralizing until the pH is 6-8, obtaining complex amino acid aqueous solution, preparing fermentation powder, accumulating to a full height of 0.8-1 rice and in stack fertile compost bin, allowing to stand, fermenting at 45 degrees C and mixing, warming to 50 degrees C, mixing, rotting for 46-48 days to obtain organic compost.    USE - Used as selenium-enriched amino acid microbial organic fertilizer (claimed).    ADVANTAGE - The fertilizer is of good quality, increases crop yield and product quality and improves soil fertility.    DETAILED DESCRIPTION - Selenium-enriched amino acid microbial organic fertilizer comprises (i) preparing complex amino acid aqueous solution for crop root stem, drying in the sun such that the water content is less than 12%, crushing to particle diameter of 1 mm or less powder to obtain crop root stem powder, to 2 pts. wt. crop root stem powder, adding 6-8 pts wt. hydrochloric acid solution, heating at 85-97 degrees C, the concentration of the hydrochloric acid solution is 26-28 %, dissolving the crop root stem powder in hydrochloric acid solution, cooling to obtain hydrochloric acid liquid, passing the hydrochloric acid liquid into reaction tank and gradually adding alkali entering ammonium bicarbonate for neutralizing until the pH is 6-8, obtaining complex amino acid aqueous solution, preparing fermentation powder by adding 10-15 pts. wt. agar to 200 pts. wt. water, heating until the agar and the cane sugar is dissolved at 55 degrees C, adding 50 pts. wt. soil bean mud, 50 pts. wt. bean pulp, stirring mixture, adding 1 pts. wt. yeast powder, stirring and mixing, holding at 61-63?OC, fermenting for 46-48 days, adding 100 pts. wt. coal powder, stirring uniformly, stacking for 2-3 days, obtaining fermented powder, (ii) the selenium-enriched organic compost includes 1 pts. wt. fermentation powder, 90-110 pts. wt. selenium-enriched straw powder, 145-165 pts. wt. plant cake, 40-60 pts. wt. selenium ore powder, the method includes taking selenium-enriched straw powder, adding into liquid, stirring, allowing to stand, waiting for drying straw biogas liquid, uniformly adding ferment powder, plant bran cake, selenium ore powder, mixing uniformly, accumulating to a full height of 0.8-1 rice and in stack fertile compost bin, allowing to stand, fermenting at 45 degrees C and mixing, warming to 50 degrees C, mixing, rotting for 46-48 days to obtain organic compost, the selenium-enriched straw powder is dry crushed to a particle diameter of less than 10 mm below, the selenium ore powder is puffed into a particle diameter of 500-1000 mg/kg and crushed over 50 meshes or below, the microbial inoculums includes using side short bud spore bacillus cytosine, or Bacillus subtilis, in a fermentation device for producing microorganism such that the total viable count reaches 45- 55 hundred million/g, numbering in amino acid selenium-enriched microorganism organic fertilizer by taking organic stack fertilizer stirring, drying naturally until the water content is between 28-35%, stirring, heating the powder material to obtain organic fertilizer, taking 3-5 pts. wt. microbial inoculums, 45-55 pts. wt. complex amino acid solution, 800-1000 pts. wt. organic fertilizer, mixing, stacking to a height of 0.8-1 meter of compost, allowing to stand, heating at 45 degrees C by turning and mixing, controlling the temperature not to exceed 50 degrees C, mixing continuously, leaving for 3-5 days later for more warm air in stack fertile chamber, and crushing to powder material, then passing into continuous granulator for more warm air and make water content to 28-30 %, and granulating.