The invention provides a wheat and corn year-round 'dual minimal tillage' cultivation method. The method makes full use of an existing tillage way to the greatest extent, and by tillage way change, light, temperature and moisture management of double crops are optimized and integrated, and water-fertilizer complementation, year-round overall planning and efficient utilization of the double crops are realized. The method includes steps: in a wheat planting season, after the crop in the last season is harvested in a Huang-Huai-Hai wheat area, performing stubble cleaning and leveling on land surface, and adopting a no-tillage stubble covering precision seeder for minimal tillage sowing of wheat, wherein the deep scarification depth is 45cm, the seedling belt leveling width is 8cm, the wheat sowing depth is 5cm, and the seed fertilizer applying depth is 15cm; in a corn planting season, after the wheat in the last season is harvested in the Huang-Huai-Hai wheat area, performing stubble cleaning and leveling on land surface, adopting the no-tillage stubble covering precision seeder for minimal tillage sowing of corns, wherein the deep scarification depth is 25cm, the corn seedling belt leveling width is 6cm, the corn sowing depth is 3cm, the seed fertilizer applying depth is 10cm, and the corn row spacing is 12cm.