A method for distributing fibrous material, wherein fibrous material, which is fiberized by a spinner of a fiberizing unit, is accumulated on a collection conveyor disposed under the spinner, is characterized by rotatably disposing a hollow cylindrical bucket at a position just under the spinner, the hollow cylindrical bucket having a two-stage structure comprising an upper stage part and a lower stage part, the lower stage part being inclined at an angle with respect to a rotary axis of the hollow cylindrical bucket; and rotating the hollow cylindrical bucket, dispersing the fibrous material in the hollow cylindrical bucket and accumulating the fibrous material on the collection conveyor after flowing down the fibrous material in the hollow cylindrical bucket.