The utility model discloses a
robot cleaning device which comprises a
brush rod rotationally arranged on a
robot body, large bristles are arranged on the
brush rod, the
robot cleaning device further comprises a straight rod,
brush teeth are arranged on the straight rod, bent hooks are arranged at the ends of the brush teeth, a plurality of sawteeth are arranged on the brush teeth, a sliding groove is formed in the robot body, a sliding block is arranged in the sliding groove in a sliding mode, and a rotating sleeve is rotationally arranged on the sliding block. The rotating sleeve is detachably connected with the straight rod in a liftable manner, a first dust suction port is formed in the
machine body and above the large bristles, a second dust suction port is formed in the bottom, close to the outer side, of the
machine body, and the second dust suction port is connected with a soft suction
pipe extending outwards; due to the fact that the hooks are arranged at the ends of the brush teeth and the sawteeth are arranged on the rod portions of the brush teeth, when the brush teeth and the brush bristles rotate, the hooks and the sawteeth on the rotating brush teeth can easily
cut off or hook off the brush bristles, removing force and
hooking force on the hair wound on the brush bristles are greatly enhanced, and the hair on the brush bristles can be conveniently removed.