A package

The packing box, comprising a folding line plate blank is made of, (1), forming the packaging box bottom of the bottom plate type tunnel comprising a wall plate (2), and a packaging box on the folding plate (3) and back and heat is a support leg of the triangular fold (3A) and edge fold (3B). And a side table-flap's free is provided with A Koutiao (4), the sealing connected with a heat agglomerant, and sealed in the opposite side of the folding. The sealing pig's or ox's tongue length is less than the packaging box width, a enables comprising a material-dropping, the packaging box of the top in order to close the packaging box.