The utility model relates to a prevent twining grass and pull out stalk roller belongs to agricultural machine technical field. Should pull out the stalk roller include rotatable locate in the frame pull out the stalk axle and along the multirow V type pinion rack that pulls out stalk axle circumference interval arrangement, the both ends of pulling out the stalk axle are fixed with a carousel respectively, the outside cover of every carousel is equipped with a shell of fixing in the frame, is fixed with one on the shell medial surface and is located and triggers rack group between shell and the carousel, the both ends of every row of V type pinion rack are all blocked and are equipped with a U -shaped cassette, and the both sides face punishment of every row of V type pinion rack do not is equipped with a push pedal of fixing on the U -shaped cassette of this row V type pinion rack both ends, is fixed with the drive rack on the U -shaped cassette, wears to be equipped with the pivot on the carousel, and the one end of pivot is equipped with all the time the drive gear with drive toothed bar mesh, and the other end of pivot is equipped with and touches the gear, touch the gear be arranged in the pivot rotate when setting for the position with the toothed bar mesh that triggers rack group. Should pull out the stalk roller can clear up from inside to outside and twine the grass to clear tooth is in order to prevent that the serrated knife from twining the grass.