The invention discloses an automatic sawdust treatment device which comprises a box body. Supporting racks are fixedly connected to four corners of the bottom of the box body, the bottoms of the supporting racks are movably connected to rollers through rotating shafts, a through hole is formed in the bottom of the box body, a first air cylinder is arranged on the right side of the box body in a penetrating manner, the left end of the first air cylinder penetrates the box body and stretches into an inner cavity of the box body, and the left end of the first air cylinder is fixedly connected toa first top plate. By arranging the box body, the supporting racks, the rollers, the through hole, the first air cylinder, the first top plate, a second air cylinder, a feeding pipe, a motor, a threaded rod, a threaded barrel and a push plate matched in use, the automatic sawdust treatment device has the advantages of simple structure and high efficiency, and solves the problem that in an existingwood processing course, a lot of sawdust will be generated in a processing workshop usually, and if the sawdust is not treated timely, the sawdust will occupy the space of a processing site to obstacle normal production.