NOVELTY - A mix straw fermentation raw material feeding and discharging anti-blocking method, which involves: a straw pretreatment step and a step where pretreated straw with mandatory access to material systems is placed into the fermentation tank (1), the slurry agitation since the fermentation process and use to force out of the upper liquid feeding system pumped out after fermentation fermenter.    USE - The method is useful for mix straw fermentation raw material feeding and discharging (claimed).    ADVANTAGE - The method has simple operation, convenient, good reliability, high safety, and completely avoids the straw mixture blocking of feeding and discharging.    DETAILED DESCRIPTION - A mix straw fermentation raw material feeding and discharging anti-blocking method, which involves: a straw pretreatment step and a step where pretreated straw with mandatory access to material systems is placed into the fermentation tank (1), the slurry agitation since the fermentation process and use to force out of the upper liquid feeding system pumped out after fermentation fermenter (1); the pre-treatment step is: the straw through the guillotine cut shredding machine to knead 3-5 cm, then after cutting the straw to the pretreatment tank, join the pool in the pre-soaked straw biogas for 7-10 days, the pool at the bottom of the pretreatment biogas slurry circulation through the top of the pump to the pool of straw pretreated circulating spray; the forced feeding and discharging system includes fermentor (1), the feed tank (2), the material pool (3), cutting pump (4) and the tube crusher (5), the fermentation tank (1) is provided with a lower portion of the feeding tube (12), the fermentation tank (1) are provided at the middle and upper outlet tube (13) and an upper outlet tube (14), the feed tank (2) mounted a cutting pump (4), the cutting pump (4) of the discharge port communicates through a pipe and pipe crusher (5) of the inlet, the pipe crusher (5) through the discharge port piping and screw feed pump (8) of the feed port communicating the upper outlet tube (14) and a lower outlet tube (13) also communicates through a pipe with a screw feed pump (8) of the feed inlet, by the screw feed pump (8) of the discharge opening of the feed pipe through a pipe (12) communicates, is also connected to the pipe of the screw feed pump (8) of the discharge opening and the feed tube (12) between there slagging tube (10), the discharging pipe (10) communicates with the material pool (3); set the feeding tube (12), on the tube (14) and a lower discharge pipe (13), respectively a fourth valve (15), the sixth gate (17) and the fifth gate (16); the pipe has a pipe crusher (5) of the discharge port and screw feed pump (8) between the first gate, the lower the discharge tube (13) and the outlet tube (14) with a screw feed pump (8) with a second gate valve on the pipe connected (7), the discharging tube (10 has a third gate) (9); the straw pretreated with forced out into the fermenter feed system (1) of the following steps: the straw pretreated material and manure transported together to feed pool (2), in the feed tank (2) mixing evenly, closing the second and third gate valve (7,9), and the remaining gate valve is opened, the mixed material by a cutting pump (4), pipe crusher (5) and the screw feed pump (8) into the fermentor; self stirred slurry fermentation process: the first and the third gate valve (9) is closed, the gate valve remaining open, the fermenter (1) in the upper part of the marsh solution was passed through a screw feed pump (8) pumped into the fermenter, since the completion of the cycle was stirred slurry fermentation process; step with the material forced out of the feeding system will be pumped out after fermentation fermenter (1); after completion of the fermentation, the first a gate valve (6) and a fourth valve (15) is closed, the remaining valve open, in the screw feed pump (3) of negative pressure, the upper part of the fermenter material (1) is sucked out of the material tank (3).