The invention relates to the technical field of feed processing, in particular to biological a fermentation feed processing equipment and method. The biological fermentation feed processing equipment comprises a fixed base, symmetrically-distributed supporting blocks are arranged at the positions, close to the left end, of the surface of the fixed base, and a first conveying mechanism is supported by the tops of the two supporting blocks. The first conveying mechanism comprises a horizontally-arranged first conveying pipe, a smashing mechanism is arranged at the position, close to the left end, of the top of the outer wall of the first conveying pipe, three supporting legs distributed in an annular array mode are arranged at the position, close to the right end, of the surface of the fixed base, a fermentation mechanism is supported by the tops of the three supporting legs, the fermentation mechanism comprises a fermentation barrel, and a grinding mechanism is arranged in the middle of the top of the fermentation barrel. According to the biological fermentation feed processing equipment, materials are smashed through the smashing mechanism, the smashed materials are automatically conveyed to the grinding mechanism through the two material conveying mechanisms, the smashed materials are ground through the grinding mechanism, fermentation of the smashed materials in the fermentation mechanism is facilitated, and therefore continuous processing is achieved.