PACKAGING BOX FOR MULTI-PACK

PROBLEM TO BE SOLVED: To provide a packaging box for multi-pack which suppresses removal of a container bottom fixing piece for fixing the container bottom of a housed container from the container bottom and jump-out to the outside of the container bottom fixing piece at the time of a transport step in a manufacturing process or at the time of handling in a delivery process after product shipment.SOLUTION: The packaging box 1 for multi-pack includes an upper surface plate 2 for covering the upper surfaces of a plurality of containers 100 which are arranged in parallel, side surface plates 3 and 4 which are connected with both side sections of the upper surface plate 2 and are arranged to be confronted with each other in a manner covering the side surfaces of respective containers 100, bottom surface plates 5 and 6 which are connected with each of the side surface plates 3 and 4 and include fastening sections 7 and 8 which can be engaged with each other, and a plurality of container bottom fixing pieces 30 which are formed to be astride folding lines 3a and 5a located at the connected areas between the bottom surface plates 5 and 6 and the side surface plates 3 and 4, and can get into a container bottom recess section 115 of each container 100. Each container bottom fixing piece 30 includes a fastening claw section 31 capable of coming into contact with the container bottom recess section 115 when the container bottom fixing piece 30 is brought into the container bottom recess section 115.