The present invention is provided with: a tablet supply unit main body provided with a supply box； a bottom plate； and a bottom plate support member. The bottom plate opens and closes a bottom opening of the supply box by means of a second end pivoting centered on a first end supported by the tablet supply unit main body； the bottom plate support member can regulate the pivoting of the bottom plate； the tablet supply unit main body and the bottom plate support member can move relative to each other in the horizontal direction； by means of the relative motion, the bottom plate pivots between a state such that the opening of the bottom opening is blocked and an open state； and in the state of the bottom plate sealing the bottom opening, at least a portion of the upper surface of the bottom plate is positioned upward and the bottom surface of the edge of the bottom opening is positioned downwards.
