The invention discloses a coarse cereal seeding machine for no-tillage seeding. The coarse cereal seeding machine comprises a rack, a fertilizer apparatus, a seed sowing device, a seed manure box, a stubble breaking and ditching device, a suppression mechanism, ground wheels and transmission mechanisms. The machine adopts a stubble breaking, ditching, seed manure applying and seeding single body, a suppression wheel mechanism single body, a high ground clearance and large spacing transverse beam rack and the various transmission mechanisms for intensively changing speeds so as to realize stubble breaking and ditching, seed manure application, and semi-precision no-tillage seeding of wheat, corns, coarse cereals and small-grain pasture seeds. Particularly, the problems of crop stubble winding and blockage, hilling, mixed seed manure application, difficult burying of the ditching device, much disturbance to a soil layer, unevenness of a soil covered ground surface, large traction resistance and the like in the no-tillage seeding process are solved. The machine is simple in structure and easy to operate, has multiple purposes, is low in manufacturing cost and is suitable for specialized households of planting, and small and medium-sized farms to popularize and apply.