The invention relates to a cattle feed processing device. The cattle feed processing device comprises a shell and a crushing cylinder located in the shell, a feeding hopper and a discharging hopper are arranged at the top and the bottom of the shell respectively, a screening net is arranged on the cylinder wall of the crushing cylinder, a feeding opening is formed in the crushing cylinder, a silodoor is arranged in the feeding opening, one end of the crushing cylinder is hinged to the inner wall of the shell through a universal ball, a crushing shaft is rotatably connected within the crushingcylinder, the crushing shaft is hollow, a plurality of vertical crushing cutters are arranged on the crushing shaft in the axial direction, and the two ends of the crushing shaft are fixedly connected with fixing plates; and a plurality of transverse crushing cutters are arranged on each fixing plate, the ends, away from the fixing plates, of the transverse crushing cutters face the center of thecrushing cylinder, the end, away from the universal ball, of the crushing shaft penetrates through the side wall of the crushing cylinder and is fixedly connected with a crushing gear coaxially, a driving shaft is fixedly connected within the shell, the driving shaft is fixedly connected with a driving gear coaxially, the driving gear is engaged with the crushing gear, and a driving rod is connected between the crushing shaft and the driving shaft. The cattle feed processing device is simple in operation and low in manual input.