A cleaning device comprising: a vacuum cleaner which includes a dust collecting bin; and a docking station capable of connecting with the vacuum cleaner, wherein the docking station includes: a charger configured to be electrically connected to a charging terminal of the vacuum cleaner in response to the vacuum cleaner being coupled to the docking station, the cleaning device characterized in that it further comprises a door driver configured to open or close a dust collecting bin door disposed at a lower portion of the dust collecting bin, a suction device configured to move air from the dust collecting bin into the docking station, a collector configured to collect foreign matter such that the foreign matter moves with the air due to driving the suction device, and a controller configured to: control the door driver to open the dust collecting bin door in response to the charging terminal of the vacuum cleaner being electrically connected to the charger, control the suction device to supply a suctioning air flow to the dust collecting bin, perform a discharge operation in response to the dust collecting bin door being opened, and control the door driver to close the dust collecting bin door in response to an end of the discharge operation. a vacuum cleaner which includes a dust collecting bin; and a docking station capable of connecting with the vacuum cleaner, wherein the docking station includes: a charger configured to be electrically connected to a charging terminal of the vacuum cleaner in response to the vacuum cleaner being coupled to the docking station, the cleaning device characterized in that it further comprises a door driver configured to open or close a dust collecting bin door disposed at a lower portion of the dust collecting bin, a suction device configured to move air from the dust collecting bin into the docking station, a collector configured to collect foreign matter such that the foreign matter moves with the air due to driving the suction device, and a controller configured to: control the door driver to open the dust collecting bin door in response to the charging terminal of the vacuum cleaner being electrically connected to the charger, control the suction device to supply a suctioning air flow to the dust collecting bin, perform a discharge operation in response to the dust collecting bin door being opened, and control the door driver to close the dust collecting bin door in response to an end of the discharge operation. a charger configured to be electrically connected to a charging terminal of the vacuum cleaner in response to the vacuum cleaner being coupled to the docking station, the cleaning device characterized in that it further comprises a door driver configured to open or close a dust collecting bin door disposed at a lower portion of the dust collecting bin, a suction device configured to move air from the dust collecting bin into the docking station, a collector configured to collect foreign matter such that the foreign matter moves with the air due to driving the suction device, and a controller configured to: control the door driver to open the dust collecting bin door in response to the charging terminal of the vacuum cleaner being electrically connected to the charger, control the suction device to supply a suctioning air flow to the dust collecting bin, perform a discharge operation in response to the dust collecting bin door being opened, and control the door driver to close the dust collecting bin door in response to an end of the discharge operation. control the door driver to open the dust collecting bin door in response to the charging terminal of the vacuum cleaner being electrically connected to the charger, control the suction device to supply a suctioning air flow to the dust collecting bin, perform a discharge operation in response to the dust collecting bin door being opened, and control the door driver to close the dust collecting bin door in response to an end of the discharge operation.