A robot cleaner includes a housing; a motor in the housing; a separation driver including a stopper configured to vertically move up and down; and a cleaning cloth module including a first member including a stopper insertion hole into which the stopper is insertable, and an attaching member to which a cleaning cloth is detachably couplable, and a second member configured to be rotated by the motor, and positioned between the first member and the cleaning cloth to be coupled and separably coupled with the first member.