To provide a stencil printing device having at least a plate making means, a plate cylinder, and a printing press cylinder releasable from the plate cylinder, a means to press the printing press cylinder onto the plate cylinder, wherein a paper can be discharged without causing curling jam even when the paper is thin and has many fill images thereon.

The stencil printing device, having a disk 20 rotatably held at the pressed position onto the printing press cylinder downstream of the press nip P on the rotation direction of the press printing cylinder 16, drives the disk in cooperation with the printing operation at the same peripheral velocity as that of the printing press cylinder. The disk is detented against the spindle thereof, and the rotation direction of the driving source connected to the spindle also rotatably drives the disk toward only the paper discharge direction.