NOVELTY - A three-stage production of biological bacteria organic fertilizer comprises adding water and livestock manure to biogas fermentation tank, adding methane bacteria to obtain methane gas, hydrolyzing with human and animal excrements, and fermenting; flowing to strain fermentation tank, adding calcium superphosphate, trace element, and fermentation strains, and fermenting; mixing with crushed industrial crop stalk organic waste, and fermenting; and adding calcium superphosphate, fermenting, decomposing, aging, and fermenting; and drying, cooling, sieving, and packaging.    USE - Method for three-stage production of biological bacteria organic fertilizer (claimed).    ADVANTAGE - The method simplifies strain propagation technique and speeds up efficiency of fungus propagation which increases biological bacteria survival rate.    DETAILED DESCRIPTION - A three-stage production of biological bacteria organic fertilizer comprises:    (A) adding 50-70 wt.% water and livestock manure to biogas fermentation tank, adjusting moisture content to 90% and pH value to 6.5-7.5, adding 20 wt.% methane bacteria, opening tank's reflux stirrer to carry out decomposition of material through stirring at 20-30 degrees C to obtain methane gas, collecting into gas storage tank, hydrolyzing with human and animal excrements to obtain nitrogen, phosphorus, potassium, humic acid, and nutrients such as amino acids, and fermenting for 10-15 days;    (B) opening tank's valves to carry out automatic flowing of fermentation liquid to strain fermentation tank, closing valve when strain fermentation tank liquid level is parallel to biogas fermentation tank, adding 5-10 wt.% calcium superphosphate and 4-7 wt.% trace element, stirring for 10 minutes to carry out strain propagation, adjusting pH value to 5.5-6.5, adding 5 wt.% fermentation strains, and closing tank to carry out anaerobic fermentation at 20-35 degrees C; and refluxing while stirring, fermenting for 2-3 days to obtain liquid bacteria, and storing;    (C) mixing with crushed industrial crop stalk organic waste, adjusting moisture content to 50-60%, adding to fermentation tank, turning on tank, ventilating, and mixing by turning twice a day; and fermenting to 60-75 degrees C for 15 days, and naturally cooling to 30 degrees C until moisture content is 20-30%; and    (D) adding 5-10 wt.% calcium superphosphate, adjusting moisture content to 45-50%, adding into anaerobic fermentation tank, closing to carry out fermentation to obtain biological bacteria, decomposing, aging, and fermenting for 15 days; and drying, cooling, sieving, and packaging.    An INDEPENDENT CLAIM is included for a three-stage biological bacteria organic fertilizer production device comprising biogas fermentation tank, strain fermentation tank, and reflux stirrer.