Aiming at the working conditions of rice stubble with high stubble, heavy soil adhesion and large fluctuation of water content in the rice-rapeseed rotation area, combined with the agronomic requirements that surface flatting, seedbed crushing, straw returning to the field and water draining to the furrow for winter rapeseed direct-seeding, considering the production practice that the single function tillage machine is not conducive to scramble for farming time and will compacting soil as it repeatedly working in the fields, a kind of seedbed preoaration technology scheme of "left-turn disc plough group burying stubble, reverse rotary knife roll crushing soil, side mounted plough ditching furrow" was put forward, and a kind of driven disc ploughing and reverse rotary tilling integrated machine for rapeseed seedbed preparation was designed. The machine is mainly composed of driving disc plough group, reverse rotary blade roller, front ditch plough and rear ditch plough and soil-flated plate, which can realize the functions of surface flatting, seedbed crushing, straw burying and furrow ditching. The spatial layout design principle of each tillage component was analyzed, and the structure parameters and working parameters of drivin disc plough group and reverse rotary blade roller were determined. Field experiment showed that: The average values of tillage depth, furrow depth, furrow width, compartment flatness, the rate of soil pulverizing and straw burying in seedbed after preparation machine operation were 173.2mm, 190.2mm, 401.4mm, 11.6mm, 95.9% and 90.2% respectively; The average values of stability coefficient of tillage depth, furrow depth and furrow width were 85.6%, 86.7% and 84.6% respectively. And these can meet the agronomic requirements of seedbed preparation for rapeseed mechanized direct-seeding.