To provide a coating material-supply tool capable of uniformly and quickly sticking a proper amount of coating material to the roller and belt of a coating tool having the roller and a coating apparatus having the belt stretched on a plurality of rollers.

In the coating material-supply tool 1, a coating material-supply roll 10, configured in such a manner that a coating material-supply belt 15 is stretched between an upper roller 11 disposed above and a lower roller 12 disposed below, is detachably held by a roll holding table 20 and the held coating material-supply roll 10 is held at such a predetermined height that the lower roller 12 is dipped in a coating material P in a coating material container 2. When a coating roller 3 is placed on the roll holding table 20 and moved to be slid so as to overlap with the coating material-supply belt 15, the coating material-supply belt 15 of the coating material-supply roll 10 is rotated by the movement of the coating roller 3, the coating material P in the coating material container 2 is stuck to the coating material-supply belt 15, and the coating material P stuck to the coating material-supply belt 15 is supplied to the belt 33 or roller of the coating roller 3.