The utility model belongs to the technical field of
straw returning, and particularly relates to a
straw and excrement mixed ditching operation
machine which comprises a frame, a ditching blade, a
storage tank and a covering blade are arranged on the frame, an excrement cavity and two groups of
straw cavities for clamping the excrement cavity are formed in a storage cavity of the
storage tank by means of a partition plate, and the covering blade is arranged in the storage cavity of the
storage tank. A stirring mechanism is arranged at the discharging end of each straw cavity and comprises a stirring wheel and a driving unit, an
extrusion channel is formed between each stirring wheel and the side wall of the corresponding straw cavity, straw in the straw cavities on the two sides passes through the
extrusion channels to form a sheet-shaped structure and enters the discharging cavity to clamp excrement, and the discharging end of each straw cavity is connected with the driving unit. The storage chamber of the storage tank is divided into the
manure chamber and the straw chambers on the two sides, straw on the two sides forms a
sheet structure by means of the
extrusion channel, the
manure in the middle is clamped and wrapped, and therefore the effect that the straw and the
manure are evenly mixed is achieved, and the
decomposition speed of the straw is increased.