A vacuum cleaner is provided. The vacuum cleaner includes a main body, a dust container, a press member, a driving motor, and driving mechanism. The main body includes an air suction device. The dust container is detachably coupled to the main body and includes a dust storage part storing dust. The press member is provided within the dust container to decrease a volume of the dust stored in the dust storage part. The driving motor is provided in the main body and drives the press member automatically. The driving mechanism transfers driving force of the driving motor to the press member.