NOVELTY - Granular fertilizer comprises microbial fertilizer, pullulan, inorganic filler and water in a weight ratio of 60-70:10-25:10-15:5, where microbial fertilizer further comprises microbial fermentation powder comprising Bacillus megaterium, B.amyloliquefaciens, B.thuringiensis, B.mucilaginosus, and Azotobacter chroococcum in a mass ratio of 1:1:1:1:1, and complex nutrients comprising nitrogen, phosphorus and potassium elements, trace element, organic matter and complex amino acid.    USE - The granular fertilizer is useful for growing crop.    ADVANTAGE - The granular fertilizer is highly soluble in water, and simple to prepare, improves physical and chemical properties of soil, and height and yield of crop, and increases sprout rate of Highland barley.    DETAILED DESCRIPTION - Granular fertilizer comprises microbial fertilizer, pullulan, inorganic filler and water in a weight ratio of 60-70:10-25:10-15:5, where microbial fertilizer further comprises microbial fermentation powder comprising Bacillus megaterium, B.amyloliquefaciens, B.thuringiensis, B.mucilaginosus, and Azotobacter chroococcum in a mass ratio of 1:1:1:1:1, and complex nutrients comprising nitrogen, phosphorus and potassium elements, trace element, organic matter and complex amino acid, where nitrogen is at least one chosen from urea, ammonium sulfate and ammonium chloride, phosphorus is at least one chosen from monoammonium phosphate, diammonium phosphate, superphosphate, and potassium dihydrogen phosphate, element is at least one chosen from potassium sulfate, potassium chloride, potassium carbonate, and potassium nitrate, trace element is at least one chosen from calcium, magnesium, zinc, molybdenum, copper, iron, silicon, and boron in form of soluble compounds, organic matter is at least one chosen from humic acid, soluble protein, and their mixtures, complex amino acid comprises Ala, Arg, Asp, Cys, Glu, Gly, His, Lys, Met, Phe, Pro, Ser, Thr, Trp, Tyr and Val. The molecular weight of pullulan to 200 kDa, and inorganic filler is quicklime, calcium sulfate, diatomite, activated charcoal and ferric oxide. An INDEPENDENT CLAIM is included for method for preparing granular fertilizer, which involves (a) storing and activating the above-mentioned bacterial strains at 4 degrees C, and inoculating and culturing the bacterial strains in solid culture medium at 37 degrees C for 24 hours, (b) selecting activated bacterial colony, inoculating selected activated bacterial colony in liquid culture medium, and culturing at 37 degrees C at the speed of 200 revolutions/minute (rpm) for 20 hours, where seed culture medium comprises (i) B.megaterium, B.amyloliquefaciens, B.thuringiensis (g/l), 10 peptone, 5 yeast powder, 10 sodium chloride with pH 7.4, and sterilizing the culture medium at 121 degrees C for 20 minutes, (ii) B.mucilaginosus (g/l), 10 sucrose, 5 potassium hydrogen phosphate trihydrate, yeast powder 0.5, 0.02 iron(II) chloride tetrahydrate, 0.4 calcium carbonate, 0.2 magnesium sulfate heptahydrate with pH 7, and (iii) A.chroococcum (g/l), 20 glucose, 0.8 potassium hydrogen phosphate trihydrate, 0.2 monopotassium phosphate, 0.2 magnesium sulfate heptahydrate, 0.5 calcium carbonate, 0.125 iron(II) chloride tetrahydrate, 0.25 sodium molybdate, 0.5 ammonium nitrate with pH 7.2, (c) performing fermentation in fermentation culture medium by inoculating 10% inoculum, culturing at 37 degrees C at the speed of 300 rpm for 1 hour, ventilating in a ratio of 1:1, collecting fermentation liquid after 20 hours, where the fermentation culture medium comprises (i) B.megaterium, B.amyloliquefaciens, B.thuringiensis, 1 %mass glucose, 0.6 %mass potassium hydrogen phosphate trihydrate, 0.3 %mass monopotassium phosphate, 0.15 %mass urea, 0.1 %mass yeast powder, 0.41 %mass magnesium sulfate heptahydrate, and water (remainder) with pH 7, (ii) B.mucilaginosus, 1 %mass sucrose, 0.5 %mass potassium hydrogen phosphate trihydrate, 0.05 %mass %mass yeast powder, 0.002 iron(II) chloride tetrahydrate, 0.04 %mass calcium carbonate, 0.02 magnesium sulfate heptahydrate, and water (remainder), and (iii) A.chroococcum, 2 %mass glucose, 0.08 potassium hydrogen phosphate trihydrate, 0.02 %mass monopotassium phosphate, 0.02 %mass magnesium sulfate heptahydrate, 0.05 %mass calcium carbonate, 0.0125 iron(II) chloride tetrahydrate, 0.025 sodium molybdate, 0.05 %mass ammonium nitrate with pH 7.2, (d) adding 10 %mass diatomite, collecting fermentation liquid, uniformly mixing, and fixing cells for promoting cell dormant, (e) centrifuging the fermentation liquid, collecting cells, and freeze-drying the collected cells, (f) adding complex nutrients to powder obtained in step (e), and uniformly mixing to obtain microbial fertilizer, and (g) adding pullulan, inorganic filler and water to microbial fertilizer in a granulator, and granulating the mixture into 2-50 mm size granule.