To provide a various type seal surface of a low cost and to allow a female, a child or the like having a weak force easily engrave a swelling pattern having a clear profile even by simply setting, replacing and altering its direction.

In the swelling pattern engraving device comprising polygonal seal surface plates, and various type seal surfaces, a magnet is mounted at iron pieces mounted at bottoms of the plates, a cylinder 5 in the engraving device body, and a lower bearer plate 7, and a link lever 3 is interposed between an operating lever 4 and the cylinder 5.