To provide a plate discharge apparatus of a stencil printer in which trouble hardly occurs even in a master with a weak strength when discharging a plate so that a conventional fault is solved.

The plate discharge apparatus of the stencil printer is constituted of an upper plate discharge roller, a lower plate discharge roller, a plate discharge box and the like which are made of elastic materials, oppositely pressed and rotatably held and used to peel and dispose the used master. The upper plate discharge roller and the lower plate discharge roller are rotatably driven at a speed faster than the circumferential speed of a porous cylindrical plate cylinder when discharging the plate and a torque limiter is provided between the roller axes of the upper plate discharge roller and the lower plate discharge roller.