To provide a stencil printing device for actualizing optimum image printing quality while suppressing printing wrinkles (a white-streak image failure) or the deviation of a master due to the flotation of a printmaking master, even when a printed medium to be used in the stencil printing device using active energy ray hardening ink is non-coated paper or coated paper such as high quality paper.

A tapered hole is formed where a thickness Fh of a film 12-1 is 2.5-5 m, the application amount (deposition amount or basis weight) of a porous resin film 12-2 is 1.0-1.9 g/m2, and a hole area Sk of the film 12-1 on the K-face of a melted hole portion 28 is 1/2 or smaller of a melted spread area Sf on the surface of the film 12-1 of the F-face.