Disclosed is a directional corn seeder, comprising: a seeding rack, a buffer hopper, a grain straightening mechanism and a seed arranging mechanism. The buffer hopper is mounted on the seeding rack and used for containing corn grains. The grain straightening mechanism is mounted on the seeding rack and is provided with a first feeding end and a first discharging end, and the first feeding end of the grain straightening mechanism corresponds to a discharging opening of the buffer hopper and is used for receiving the corn grains discharged from the buffer hopper, putting the corn grains according to a preset direction and conveying the corn grains to the first discharging end. The seed arranging mechanism is mounted on the seeding rack and is provided with a second feeding end and a second discharging end, and the second feeding end of the seed arranging mechanism corresponds to the first discharging end, and is used for receiving the corn grains discharged from the first discharging end, arranging the corn grains according to a preset direction and a preset distance and conveying the corn grains to the second discharging end, and the corn grains are discharged from the second discharging end to be placed on a seed bed. According to the present invention, the corn grains are sowed according to a preset direction and a preset distance, so that corn seedlings grow according to the preset direction and the preset distance, the light condition of corn is improved, and the yield is accordingly improved.Linvention concerne un semoir à maïs directionnel, comprenant : une crémaillère densemencement, une trémie tampon, un mécanisme de redressement de grain et un mécanisme dagencement de grains. La trémie tampon est montée sur la crémaillère densemencement et est utilisée pour contenir des grains de maïs. Le mécanisme de redressement de grain est monté sur la crémaillère densemencement et comporte une première extrémité dalimentation et une première extrémité de refoulement, et