A new corn zerotillage seeder with deep loosening and fertilization function, which can be used to seed corn in wheatcorn plantation area, was developed. It uses the same narrow opener to seed and fertilize. Fertilizer is applied between two seed holes. Experiments showed that the technical performance index can meet the needs of agricultural plantation. As a patent product, the seeder was selected by the Ministry of Agriculture as one of the precision seeders that have priority to popularize. 