Straw smashing and cleaning and no-tillage precision corn planter

The invention relates to a straw smashing and cleaning and no-tillage precision corn planter. The straw chopping and cleaning and no-tillage precision corn planter comprises a suspension bracket, a transmission device, a smashing device, a support frame, a fertilization device and a seeding apparatus, wherein the transmission device comprises a speed changing box, a driving belt wheel and a driven belt wheel, power is transferred to the smashing device by the driven belt wheel, the smashing device comprises a cutter shaft with a smashing cutter and a guide wheel, a bending is arranged at the front end of the inner wall of a machine case, a guide plate is arranged at the rear end of the inner wall of the machine case, the guide plate is of a rectangular pyramid shape which is gradually increased in width from top to bottom, straw and wheat stubble are guided into two sides or one side through the guide plate, the fertilization device is arranged at the rear end of the support frame, the seeding apparatus is arranged in a movable frame, the movable frame is arranged at the rear end of the support frame by a four-connecting-rod mechanism, straw smashing and cleaning, fertilizing and seeding can be realized simultaneously, the straw and the wheat stubble are smashed to improve the seeding environment and achieve high seeding speed and better effect, corns are sowed on a band area where the straw is cleaned by the guide plate, and thus, the corn seedlings can be prevented from being harmed by Athetis lepigone.