To provide a packaging bag for dry food which can be readily separat ed into a paper material and plastic when disposing of the bag, is excellent in the properties against pinhole or the like, and can be produced at low cost.

Either a plastic bag body or a paper bag body is inserted into other bag body as a plastic bag body 3 is inserted into a paper bag body 2, a double bag is formed by superposing them without bonding to form a packaging bag 1 for dry food. Such a structure facilitates the separation from each other, so that separated disposal or the exchange of either bag body can be readily carried out. Further, the double bag facilitates the filling operation of contents.