NOVELTY - Fermentation apparatus comprises movable device, fermentation tank, agitator, aeration unit, feeding and discharging device, water circulating pipeline unit, sieving device, drying device, granulating device, measuring and packaging device. The processing unit is placed on movable device and lower portion of the fermentation tank is provided with circulating pipeline and bottom portion of fermentation tank is connected with movable device. The upper portion of the fermentation tank is provided with agitator and feeding and discharging device.    USE - The fermentation apparatus is useful for aerobic fermentation of bio-fertilizer (claimed).    ADVANTAGE - The fermentation apparatus is movable.    DETAILED DESCRIPTION - Fermentation apparatus comprises movable device, fermentation tank, agitator, aeration unit, feeding and discharging device, water circulating pipeline unit, sieving device, drying device, granulating device, measuring and packaging device. The processing unit is placed on movable device and lower portion of the fermentation tank is provided with circulating pipeline and bottom portion of fermentation tank is connected with movable device. The upper portion of the fermentation tank is provided with agitator and feeding and discharging device. The aeration unit is mounted at the bottom of the fermentation tank. The fermentation tank, sieving device, drying device, granulating device, measuring and packaging device are connected in series. The microbial inoculum utilized for the fermentation comprises thermophilic Bacillus spore, B.stearothermophilus, Clostridium thermosaccharolyticum, B.methylotrophicus and Anoxybacillus contaminans in the mass ratio of 2-3:1-1.5:1-1.5:1-2.5:1-1.5. The drying device is utilized for drying raw materials. The fermentation raw materials comprises crushed 1-8 %mass oligochitosan trace additive, 0.1-0.5 %mass microorganism and 0.1-0.2 %mass trace elements, where the trace element are copper, zinc, iron, boron, manganeses, molybdenum and soluble salts. The microbial inoculum comprises B.subtilis and Bacillus amyloliquefaciens in the mass ratio 3:1, where the trace element utilized are zinc, boron, manganese, iron, copper, molybdenum and soluble salts such as zinc sulfate, boric acid, manganese sulfate, ferrous sulfate, copper sulfate, copper nitrate and ammonium.