The invention relates to a robot system, comprising a robot and a base, wherein the robot comprises a robot body (101), the bottom of the robot body (101) is provided with an ash entrance (103), the robot body (101) is internally provided with a dust box (102), and an air channel (104) is formed among the ash entrance, the ash inlet of the dust box (102) and the case of the robot body (101); the base (200) comprises a dust collection box (202) and a vacuum source (201); the air channel (104) is internally provided with a rib plate (106), the space of the air channel (104) is divided into a first air channel (1041) and a second air channel (1042), the ports of the two parts are a first ash entrance and a second ash entrance respectively; in an ash discharge mode, under the suction action of the vacuum source (201), gas enters into the dust box (102) along the first ash entrance, and ash is discharged into the dust collection box (202) from the second ash entrance. In the invention, the rib plate (106) is arranged, and the air velocity in the dust box (102) is improved, thus the ash sucking capability is greatly improved.