NOVELTY - Biological organic/inorganic compound fertilizer comprises granular fertilizer core and lagging cover wrapping the fertilizer core. The fertilizer core is obtained by mortar jetting, coating and granulating the concentrated waste liquor rich in nutrient components such as amino acid and organic matter, where the waste liquor is obtained by processing the waste water from gourmet powder factory, and the fertilizer core further comprises humic acid and raw material of inorganic nitrogen, phosphorus and potassium.    USE - As biological organic/inorganic compound fertilizer.    ADVANTAGE - The fertilizer exhibits rapid effect, slow release and prolonged effect. The fertilizer does not cause strain pollution and strain poisoning which is resulted by mixing the Bacillus preparation with other fertilizer components.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the biological organic/inorganic compound fertilizer, which involves (i) processing waste water obtained from gourmet powder factory to obtain concentrated waste liquor rich in nutrient components, and neutralizing the concentrated waste liquor using liquid ammonia, where the neutralization degree is 30-34%, (ii) adding humic acid, ammonium phosphate and potassium chloride to the neutralized solution, such that the ratio of neutralization solution, humic acid, ammonium phosphate and potassium chloride is 45:15:20:20, and spraying the obtained mixture into a drum filter at 360-460 degrees C to produce organic/inorganic compound fertilizer particles, (iii) spraying microbial mixed liquor on the organic/inorganic compound fertilizer particle by thermal spraying method, where the microbial mixed liquor is a Bacillus preparation comprising animal fat, starch and bone glue as carrier, the microbial mixed liquor is prepared by mixing the starch, bone glue and Bacillus preparation with animal fat, the ratio of animal fat, starch, bone glue and Bacillus preparation is 100:20:22:15-18 or 100:22:20:15-18, the spraying temperature is 55-65 degrees C, the ratio of organic/inorganic compound fertilizer particle to microbial mixed liquor is 100:11-14, and (iv) covering the obtained biological organic/inorganic compound fertilizer particle using light calcium carbonate with a fineness of 0.05-0.30 mm.