NOVELTY - A waste continuous solid fermentation reaction device, comprises a mixing tank and a fermentation tank below the mixed tank, where the upper part of the mixing tank is formed with a strain inlet and a feeding inlet; baffles are arranged below the strain inlet and the feeding inlet in the mixing tank; the baffles are staggered and inclined downwards from two sides and are extended out of the central line; a transitional part is arranged between the mixing tank and the fermentation tank; and a splitter is arranged in the transitional part.    USE - The device is useful for waste continuous solid fermentation reaction (claimed), preferably for treating and utilizing waste.    ADVANTAGE - The invention strengthens the heat energy and quality transfer through spacing boards when realizing even inoculation through baffles and flow splitter. It divides the fermentation tank into small reaction spaces to evenly ferment the substrate, quicken the fermentation speed, and strengthen the waste solid fermentation process. The invention is in favor of enlarging the solid fermentation and production and application.    DETAILED DESCRIPTION - A waste continuous solid fermentation reaction device, comprises a mixing tank and a fermentation tank below the mixed tank, where the upper part of the mixing tank is formed with a strain inlet and a feeding inlet; baffles are arranged below the strain inlet and the feeding inlet in the mixing tank; the baffles are staggered and inclined downwards from two sides and are extended out of the central line; a transitional part is arranged between the mixing tank and the fermentation tank; a splitter is arranged in the transitional part; the interior of the reaction area of the fermentation tank is provided with spacing boards evenly distributed along the axial direction to divide the middle reaction area of the fermentation tank into areas with equal volume. An INDEPENDENT CLAIM is a solid fermentation method based on the waste continuous solid fermentation reaction device comprising: (1) adding the waste into the mixing tank from the feeding inlet through the feeding pipeline, at the same time adding the microbial catalyst into the mixing tank from the strain inlet, evenly mixing the waste with the microbial catalyst under the action of baffle; (2) evenly adding the mixture obtained by evenly mixing the waste with the microbial catalyst into the middle reaction area of the fermentation tank, dividing the mixture of the waste and the microbial catalyst into equal parts by the spacing boards in the fermentation tank, anaerobically fermenting the mixture in the fermentation tank to produce biogas; and (3) returning a part of solid fermentation product to the mixing tank through the discharging pipeline and the feeding pipeline, and discharging the other part of fermentation solid product from the solid product outlet.