Provided is a method of feeding fish under cultivation whereby contact among the fish can be prevented and the fish under cultivation can efficiently take a feed. A method of feeding fish under cultivation characterized by comprising feeding the fish in such a manner that a feed can sediment in water at a speed higher than the natural sedimentation speed. In this feeding method, the front end of a hose is submerged in water and a mixture of a feed with water is discharged therefrom under elevated pressure to thereby allow the feed to sediment in water at a speed higher than the natural sedimentation speed.
