A seed belt wide-row crop full-scale straw land no-tillage seeder that tosses shredded straw from the rear, comprising a traction power mechanism, a shredding device (5), a transverse conveying device (6), a rear-tossing device (2), and a seeding device (4)； the shredding device (5) comprises a shredding rotary shaft, the shredding rotary shaft being provided thereon with a plurality of sets of shredding tools that are separated at a certain distance, wherein each set of shredding tools corresponds one-to-one to each seeding seed belt in a field； the transverse conveying device (6) is an auger structure and is parallel and adjacent to the shredding device (5) so as to receive tossed straw that is shredded by the shredding device (5)； the rear-tossing device (2) is provided at a tail end of the transverse conveying device (6) and comprises a blade-type lifting device and a backward curved air duct； the seeding device (4) is provided at the rear of the shredding device (5) and is located below an outlet of the curved air duct, the same being provided in the transverse direction with seeding units corresponding one-to-one to the position of each shredding tool. The seed belt wide-row crop full-scale straw land no-tillage seeder that tosses shredded straw from the rear simplifies the shredding device (5) and reduces resistance and power consumption, thus the weight of the entire machine is significantly reduced, and the entire machine is light-weight, saves power and reduces consumption； moreover, the micro-environment of seeds and seedlings is protected, greatly increasing emergence rate and being beneficial in seedling alignment and strength.La présente invention concerne un semoir sans labour de semis de paille pleine échelle en lignes larges à courroie à semences, qui rejette de la paille déchiquetée par l'arrière, comprenant un mécanisme motorisé de traction, un dispositif de déchiquetage (5), un dispositif de transport transversal (6), un dispositif de projection
