Abstract: Rice bud seed mixed with dry soil powder can reduce their internal cohesion force and the adhesion force acted on the surface of a seeder parts, can increase dispersion coefficient, and decrease the broken seed rate when seeding. Test result shows that the rice bud seed is mixed with dry soil powder, the standard variation of a drilling is 3.6 seeds, which is 1.36 seeds less than the rice bud seed without mixed with dry soil; the variation coefficient of uniformity of a drilling is 6%, which is 2.27% less than the rice bud seed without mixed with dry soil; the broken seed rate is 4.07% , which is 5% less than the rice bud seed without mixed with dry soil.