To recover effectively suspended oil even in the case the weather is bad and the suspended oil has converted into a highly viscous matter or solidified to a certain degree by the change with time.

Oil can be suspended on the sea level 10 by a funnel-shaped float 12 installed integrally on an underwater pump 13 temporarily. Even when waves are swollen like at the time of stormy weather, the recovering work for suspended oil 11 can be carried out continuously by a suspended oil recovering device A following the movement of waves by the arrangement. Not only an improver but also an agitating body 15 are mounted on an output shaft 14 of a rotating motor of the underwater pump 13. The suspended oil 11 can be transferred in the shape of mixed oil and water of high fluidity to recover easily and efficiently the suspended oil by the arrangement.