A seed drill refers to a planting device that is driven by a tractor. Usually a seed drill has a tube containing seeds. The coulter cut the soil open and seeds in the tube falling into the soil, then a rake covering the soil directly. Our corn planter integrates all the function, besides, it can also finish fertilizing process simultaneously. It applies to seed and fertilize corn, soybean, and other suitable plant without ploughing. This kind of corn seeding machine is applicable in plains and hilly areas with high flexibility. The specially designed grain drill can complete the work of loosing soil, digging, applying fertilizer, seeding, covering oil in one operation. With adjustable seeding capacity, seeding row space and working width, corn planter has showed extraordinary performance among the corn planters.