The invention provides a wheel shaft type wide-width precision seed distribution device, which includes a box body, an inner core, a seed discharge port and a seed distribution pipe, the inner core is cylindrical, the inner core is located inside the box body, and the Both ends of the inner core are connected to the box through bearings, the outer surface of the inner core is provided with evenly distributed concave and round dimples, and a row of brushes is arranged inside the box along the axial direction of the inner core, and the brushes and the The inner wall of the box is threaded, the seed discharge port is located at the bottom of the box, the seed distribution pipe is located below the seed meter, the seed distribution pipe includes a seeding trough, and the seeding trough is connected to the The seed discharge port is connected, and the seed distribution pipe is arc-shaped, and the arc angle is 40°≤θ≤50°. The seed distribution tube is arc-shaped and has a certain angle with the ground, which slows down the landing speed of the seeds, prevents the seeds from bouncing after landing and deviates from the sowing point, and improves the sowing accuracy. It can be seen from the above that the present invention solves the problem of seed bouncing in the background technology, and is simple and practical.