To tackle the serious issue of the increasing number of oil spill accidents, many strategies have been proposed to design novel devices for oil–water separation. We have designed a magnetically driven functionally integrated device which can continuously clean up small amounts of floating oil spills located in different areas, collecting the oil into the interior of the device. This process can be recycled many times to realize a continuous “ON–OFF–ON” program. The separation efficiency is as high as 95%.