a stencil stamp assembly is formed of : a stencil sheet having a perforation area having an image perforated therein , at least two plate members having lower end portions secured to the stencil sheet at at least two positions with the perforation area sandwiched therebetween and upper end portions connected with each other , the plate members serving as operating portions during printing , an ink holding portion for holding ink on the upper surface of the perforation area of said stencil sheet , and a center member having a plurality of surfaces in contact with at least a part of the inner surface of the plate members and the upper surface of said ink holding portion . the center member is provided in a space between the inner surface of the plate members and the upper surface of the ink holding portion .