To provide an organic fuel supply system preventing particulate materials containing water from attaching and accumulating in a crusher.

The organic fuel supply system obtains the particulate materials by crushing organic fuel containing the water by the crusher and supplies the particulate materials to particulate material utilizing equipment. After the particulate materials obtained by crushing the organic fuel is carried by airflow, the particulate materials and carrying gas are separated, and the particulate materials are supplied to the particulate material utilizing equipment. And after the water in the carrying gas is eliminated by condensing the separated carrying gas, the dried carrying gas is returned to the crusher and is used for airflow carriage of the particulate materials.