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The seeds always collided with the seeds tube and opener during the process of seeding. Due to the combined effect of the collision and machines forward, the landing position of the seed was random, which resulted in lower uniformity. To solve this problem, a helm-shaped no-tillage precision fertilization planter for corn was designed. It was mainly composed of crush straw and seedlings zone cleaning device and helm dipper disk type of dibber. The helm dipper disk type of dibber was integrated by the steering wheel of dibble and dipper disk seeding device. The steering wheel of dibble could take the seeds accurately and the dipper disk seeding device could throw seeds in fixed points, so that the precision sowing was realized. The fertilizer ditch was generated by the crush straw and seedlings zone cleaning device. The fertilization was completed by the outer sheave of fertilizer device. The result of field experiments showed that the average depth of sowing and fertilization were 52.1mm and 70.5mm, and the germination rate was improved to 95%. It satisfied the requirements of conservation tillage technology in the experimental area.