Spreading machine and edge baffle of screed thereof

The utility model discloses an edge baffle of a screed used for a spreading machine. The edge baffle comprises a movable plate (22) and a fixed plate (21) and also comprises a connecting device (24), a first adjusting arm (23) and a locating part (24), wherein the connecting device (24) is used for connecting the movable plate (22) and the fixed plate (21); the first adjusting arm (23) is pivoted with the fixed plate (21) by a first rotating shaft (233); the first adjusting arm (23) rotates around the first rotating shaft (233) to drive the connecting device (24) to move and adjust the height of the fixed plate (21) relative to the movable plate (22); and the locating part has proper accuracy and is used for fixing the relative position of the first adjusting arm (23) and the fixed plate (21). The utility model also discloses the spreading machine comprising the edge baffle of the screed. The spreading machine and the edge baffle of the screed thereof can not only have the adjustment accuracy meeting the requirement, but also have higher adjustment sensitivity.