To provide a delivery envelope which is formed integrally with an enclosed article to maintain a function of keeping the article enclosed in the envelope during delivery of the envelope and to eliminate a need for scrapping the envelope after unsealing it.

The delivery envelope 10 includes: a cover 14 which has a vertical paste margin of a given width on the back face of the edge of one vertical side and a vertical perforated line formed near the inward end of the paste margin; one or more enclosed papers 18 each of which has a vertical paste margin of a width almost equal with the given width on the front face of the edge of one vertical side, the paste margin being coated with an adhesive, and a vertical perforated line formed near the inward end of the paste margin; and a back/front cover 16 which has a vertical paste margin of a width almost equal with the given width on the front face of the edge of one vertical side, the paste margin being coated with an adhesive, and a vertical perforated line formed near the inward end of the paste margin. The back/front cover 16, the enclosed papers 18, and the cover 14 are stacked in order with their margins pasted together to fix the ends of respective one sides together to make the delivery envelope 10.