The utility model discloses a novel broadcasting machine for a saline-alkali soil desulfuration gypsum ameliorant. The novel broadcasting machine for the saline-alkali soil desulfuration gypsum ameliorant comprises a front transmission shaft, a cycloid speed reducer, a storage box, a separating groove, a turbine worm reducer, a chain wheel transmission device, a fixed shaft, a traction frame, a belt pulley, a double-row chain wheel, a lower transmission shaft, augers, travelling wheels, a rack, a discharging barrel, a spreading plate, a back transmission shaft, a chain wheel, bevel gears, blades and a screen. The broadcasting efficiency of the saline-alkali soil desulfuration gypsum ameliorant is improved, the manpower is saved, the ameliorating cost of saline-alkali soil is lowered, the saline-alkali soil desulfuration gypsum ameliorant can be broadcast evenly, the work scope is wide, and the novel broadcasting machine is suitable for broadcasting the saline-alkali soil desulfuration gypsum ameliorant in a large area of field. The novel broadcasting machine for the saline-alkali soil desulfuration gypsum ameliorant is novel in design, simple in structure, attractive in appearance and simple and convenient to operate, the broadcasting uniformity is over 90%, the broadcasting width is greater than 4.5 meters, and the working efficiency reaches more than 20 mu per hour.