To provide a general-purpose partition guide which is provided with a display section and a partition guide even though it is composed of a paper material and can be applied to various types of packaging boxes.

The partition guide uses a paper blank sheet provided with a rectangle top plate 1 with display, a front plate 2 connected to a long side of the top plate 1 via a folding line, and guide sections 3 connected to each of both sides of the front plate via folding lines. The folding line between the top plate 1 and the front plates 2 is folded, and the folding lines on both sides of the front plate 2 are folded to project both guide sections 3 forward ahead of the front plate 2.