The invention discloses a dust collecting box and a sweeping robot. The dust collecting box comprises a box body, an air suction assembly and a filtering assembly, wherein a dust collecting chamber and an air chamber are arranged in the box body, the dust collecting chamber communicates with the air chamber, and the dust collecting chamber communicates with the outside; the filtering assembly is arranged between the dust collecting chamber and the air chamber, and is used for filtering particles flowing into air of the air chamber from the dust collecting chamber; and the air suction assemblyis arranged in the air chamber, and is used for driving the air to sequentially flow through the dust collecting chamber and the filtering assembly from the outside and then flow into the air chamber.For the dust collecting box and the sweeping robot provided by the invention, the air suction assembly is arranged in the air chamber of the box body, the air suction assembly can drive the air to flow into the box body from the outside, and then the particles in the air are filtered by the filtering assembly and then reserved in the dust collecting chamber; and the air suction assembly and the box body are of an integrated structure, when the air suction assembly breaks down, the box body can be taken out from the sweeping robot, then the air suction assembly is repaired, the sweeping robotdoes not need to be integrally detached, and thus the maintenance is more convenient.