Abstract: Discusses the design process of the double row precision seeding device equipped with DC brushless fan,mainly expounds the overall structure,working principle and research and design of the main working parts of the device; The double seeding precision seeding device equipped with a DC brushless fan can achieve that the air volume of the fan is not limited by the tractor accelerator,and the soybean can be seeded in two rows at the same time. It has the characteristics of simple structure,good seeding quality,high seeding efficiency,less use failures,and precision seeding.