Straw returning and deep burying returning machine

The utility model relates to a straw returning and deep burying machine which comprises a machine frame, a traction frame is arranged at the front end of the machine frame, a main gearbox is fixed on the machine frame, a first auxiliary gearbox and a second auxiliary gearbox are fixed on the two sides of the machine frame respectively, and a straw cutting and soil loosening mechanism and a straw deep scarification and burying mechanism are sequentially arranged below the machine frame from front to back. A pressing mechanism is arranged behind a rack, a first output shaft of a main gearbox is connected with an input shaft of a first auxiliary gearbox through a first universal joint transmission shaft, a second output shaft of the main gearbox is connected with an input shaft of a second auxiliary gearbox through a second universal joint transmission shaft, and the first auxiliary gearbox drives a stem cutting and soil loosening mechanism to work. And the second auxiliary gearbox drives the straw deep scarific