Disclosed is a vacuum cleaner, which can prevent dust or foreign objects from flowing backwards. The vacuum cleaner includes a motor to generate a suction force; a suction assembly to suck air including dust or foreign objects and including a first air passage guiding the sucked air; and a dust collection filter to filter the dust or foreign objects from the sucked air, and including a dust collecting container having an opening to receive air from the first air passage of the suction assembly, a guide forming a second air passage provided to guide a flow of the air received through the opening, a shutter provided in the guide to operate, according to the suction force, in an opened mode to open the second air passage or a closed mode to close the second air passage, and a filter configured to filter the foreign objects from the sucked air.