To provide a stencil printing apparatus which can easily perform double-sided printing and reduce jamming and staining or the like when separation.

The stencil printing apparatus includes a control means controlling such that, when printing the first half part of a master on one surface of paper, a switching guide is turned from an initial position to the upper part of an ejected paper conveying means to be separated from the paper and held by the ejected paper conveying means, and, when printing the latter half part of the master on the other surface of the paper, the paper held by the ejected paper conveying means is fed to a plate cylinder, the switching guide is restored to the initial position, and also the paper is reversed by a pressing means, and then the latter half is printed on the other surface of the paper.