A cleaner including a cleaner body provided with a driving part configured to generate a suction force, a head unit connected to the cleaner body and configured to come into close contact with a surface to be cleaned by allowing external air to be introduced thereinto by the suction force of the driving part, and a cleaning member detachably provided on the head unit, wherein the cleaning member includes a member body detachably coupled to the head unit and having a floor cleaning part making contact with the surface to be cleaned, and a dust collecting container extending from the member body and configured to filter out foreign substances from air that is suctioned into the head unit.