To suggest a shaking-out box, which can be formed of a blank, store contents in an inner bag thereof, and prevent a large amount of contents from flowing out of the shaking-out box when the contents are shaken out of the shaking-out box.

A front face board, a back face board, and right and left side face boards form a body part. Right and left side face inner wall boards continuous from the back face board, and a front face inner wall board are provided. An opening board with a shaking-out hole is continuously disposed to an upper side of the inner wall board. The front face board, both of the right and left side face boards, and the back face board are respectively divided into an upper part and a lower part, by an opening strap below the shaking-out hole and across it, upwardly inclined side face broken lines continuous to the opening strap and a folding line connecting upper ends of both of the side face broken lines of the right and left side face boards. By cutting the opening strap to cut side face broken lines of the right and left side face boards, a front face board upper part, right and left side face board upper parts and a back face board upper part form an opening/closing lid. By folding the opening board along a folding line in a direction of the back face board to form the shaking-out hole. A length (L) of the opening board is longer than an internal dimension (W) of a paper box.