NOVELTY - Multi-zone biogas fermentation system, comprises fermentation tank body, hydraulic pressure rooms, drain pipe and gas storage plate. The fermentation tank body is set with fermentation chamber. The corresponding two side wall of fermentation tank body is set with mutually connected to feedstock port and discharge port of fermentation chamber. The sidewall of fermentation tank body is connected via drain pipe and hydraulic pressure room. The top part of gas storage plate is sealed and lower end is opened. The gas storage plate is fixed by the support device in the fermentation chamber.    USE - Used as multi-zone biogas fermentation system.    ADVANTAGE - The system exhibits automatic liquid stirring operation (claimed).    DETAILED DESCRIPTION - Multi-zone biogas fermentation system, comprises fermentation tank body, hydraulic pressure rooms, drain pipe and gas storage plate. The fermentation tank body is set inside fermentation chamber. The corresponding two side wall of fermentation tank body is set with mutually connected to feedstock port and discharge port of fermentation chamber. The sidewall of fermentation tank body is connected via drain pipe and hydraulic pressure room. The top part of gas storage plate is sealed and lower end is opened. The gas storage plate is fixed by the support device in the fermentation chamber. The gap is between the upper sidewall and lower sidewall of gas storage plate and upper side wall and lower sidewall of fermentation tank body. The sidewall close to feedstock port of gas storage plate has feedstock port air resistance plate. The sidewall close to discharge port of gas storage plate has gas discharge port air resistance plate. The multiple baffle are set between feedstock port air resistance plate and gas discharge port air resistance plate. The area between feedstock port air resistance plate and adjacent baffle is first fermentation zone. The area between adjacent Baffle is second fermentation zone. The area between gas discharge port air resistance plate and adjacent baffle is third fermentation zone fermentation. The top of each fermentation zone is set with separate airway. The drain pipe includes first area drain and third area drain. The first area drain pipe is opposite to first fermentation area. The third area drain pipe is opposite to third fermentation area. The fermentation system comprises rod. The rod is made by crossbar, vertical rod. The one end of crossbar is connected to at least in vertical direction of vertical rod. The rod is placed in the fermentation chamber and the gap is formed between two vertical bar located on gas storage plate and fermentation tank body. The first area of drain pipe is set one-way valve within the hydraulic pressure control room and the biogas unidirectional flow into fermentation chamber. The third area of drain pipe is set with one-way valve, which can control fermentation chamber of biogas unidirectional inflow of hydraulic pressure room. The vertical direction projection in baffle length of feed port air resistance plate is less than the gas discharge port air resistance plate. The support device is set with middle of upright fermentation chamber.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the multi-zone biogas fermentation system.